{"api_version":"1","generated_at":"2026-07-23T13:23:36+00:00","cve":"CVE-2025-10255","urls":{"html":"https://cve.report/CVE-2025-10255","api":"https://cve.report/api/cve/CVE-2025-10255.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-10255","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-10255"},"summary":{"title":"Ascensio System SIA OnlyOffice Comment Messages.aspx cross site scripting","description":"A vulnerability was determined in Ascensio System SIA OnlyOffice up to 12.7.0. Impacted is an unknown function of the file /Products/Projects/Messages.aspx of the component Comment Handler. Executing manipulation can lead to cross site scripting. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was informed early about this issue and replied: \"We are already working on this case, and the issues will be resolved in one of the upcoming patches.\"","state":"PUBLISHED","assigner":"VulDB","published_at":"2025-09-11 16:15:33","updated_at":"2026-04-29 01:00:01"},"problem_types":["CWE-79","CWE-94","CWE-79 Cross Site Scripting","CWE-94 Code Injection"],"metrics":[{"version":"4.0","source":"cna@vuldb.com","type":"Secondary","score":"2","severity":"LOW","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":2,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"DECLARED","score":"5.1","severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","data":{"baseScore":5.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"}},{"version":"3.1","source":"cna@vuldb.com","type":"Secondary","score":"3.5","severity":"LOW","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","baseScore":3.5,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"3.5","severity":"LOW","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","data":{"baseScore":3.5,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","version":"3.1"}},{"version":"3.0","source":"CNA","type":"DECLARED","score":"3.5","severity":"LOW","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","data":{"baseScore":3.5,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","version":"3.0"}},{"version":"2.0","source":"cna@vuldb.com","type":"Secondary","score":"4","severity":"","vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N","baseScore":4,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"}},{"version":"2.0","source":"CNA","type":"DECLARED","score":"4","severity":"","vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:C","data":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:C","version":"2.0"}}],"references":[{"url":"https://vuldb.com/?ctiid.323615","name":"https://vuldb.com/?ctiid.323615","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://hkohi.ca/vulnerability/21","name":"https://hkohi.ca/vulnerability/21","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/?id.323615","name":"https://vuldb.com/?id.323615","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/?submit.635871","name":"https://vuldb.com/?submit.635871","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-10255","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-10255","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Ascensio System SIA","product":"OnlyOffice","version":"affected 12.0","platforms":[]},{"source":"CNA","vendor":"Ascensio System SIA","product":"OnlyOffice","version":"affected 12.1","platforms":[]},{"source":"CNA","vendor":"Ascensio System SIA","product":"OnlyOffice","version":"affected 12.2","platforms":[]},{"source":"CNA","vendor":"Ascensio System SIA","product":"OnlyOffice","version":"affected 12.3","platforms":[]},{"source":"CNA","vendor":"Ascensio System SIA","product":"OnlyOffice","version":"affected 12.4","platforms":[]},{"source":"CNA","vendor":"Ascensio System SIA","product":"OnlyOffice","version":"affected 12.5","platforms":[]},{"source":"CNA","vendor":"Ascensio System SIA","product":"OnlyOffice","version":"affected 12.6","platforms":[]},{"source":"CNA","vendor":"Ascensio System SIA","product":"OnlyOffice","version":"affected 12.7.0","platforms":[]}],"timeline":[{"source":"CNA","time":"2025-09-11T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"source":"CNA","time":"2025-09-11T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"source":"CNA","time":"2025-09-11T07:47:14.000Z","lang":"en","value":"VulDB entry last update"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"0xHamy (VulDB User)","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-10255","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-09-11T17:30:54.586780Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2025-09-11T17:31:12.718Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://hkohi.ca/vulnerability/21"},{"tags":["exploit"],"url":"https://vuldb.com/?submit.635871"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"modules":["Comment Handler"],"product":"OnlyOffice","vendor":"Ascensio System SIA","versions":[{"status":"affected","version":"12.0"},{"status":"affected","version":"12.1"},{"status":"affected","version":"12.2"},{"status":"affected","version":"12.3"},{"status":"affected","version":"12.4"},{"status":"affected","version":"12.5"},{"status":"affected","version":"12.6"},{"status":"affected","version":"12.7.0"}]}],"credits":[{"lang":"en","type":"reporter","value":"0xHamy (VulDB User)"}],"descriptions":[{"lang":"en","value":"A vulnerability was determined in Ascensio System SIA OnlyOffice up to 12.7.0. Impacted is an unknown function of the file /Products/Projects/Messages.aspx of the component Comment Handler. Executing manipulation can lead to cross site scripting. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was informed early about this issue and replied: \"We are already working on this case, and the issues will be resolved in one of the upcoming patches.\""},{"lang":"de","value":"In Ascensio System SIA OnlyOffice bis 12.7.0 ist eine Schwachstelle entdeckt worden. Es geht hierbei um eine nicht näher spezifizierte Funktion der Datei /Products/Projects/Messages.aspx der Komponente Comment Handler. Mittels dem Manipulieren mit unbekannten Daten kann eine cross site scripting-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung."}],"metrics":[{"cvssV4_0":{"baseScore":5.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"}},{"cvssV3_1":{"baseScore":3.5,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","version":"3.1"}},{"cvssV3_0":{"baseScore":3.5,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C","version":"3.0"}},{"cvssV2_0":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:C","version":"2.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"Cross Site Scripting","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-94","description":"Code Injection","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2025-09-11T16:02:05.500Z","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB"},"references":[{"name":"VDB-323615 | Ascensio System SIA OnlyOffice Comment Messages.aspx cross site scripting","tags":["vdb-entry"],"url":"https://vuldb.com/?id.323615"},{"name":"VDB-323615 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.323615"},{"name":"Submit #635871 | Ascensio System SIA OnlyOffice Community Server 12.7.0 Cross Site Scripting","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.635871"},{"tags":["exploit"],"url":"https://hkohi.ca/vulnerability/21"}],"timeline":[{"lang":"en","time":"2025-09-11T00:00:00.000Z","value":"Advisory disclosed"},{"lang":"en","time":"2025-09-11T02:00:00.000Z","value":"VulDB entry created"},{"lang":"en","time":"2025-09-11T07:47:14.000Z","value":"VulDB entry last update"}],"title":"Ascensio System SIA OnlyOffice Comment Messages.aspx cross site scripting"}},"cveMetadata":{"assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","assignerShortName":"VulDB","cveId":"CVE-2025-10255","datePublished":"2025-09-11T16:02:05.500Z","dateReserved":"2025-09-11T05:42:07.426Z","dateUpdated":"2025-09-11T17:31:12.718Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2025-09-11 16:15:33","lastModifiedDate":"2026-04-29 01:00:01","problem_types":["CWE-79","CWE-94","CWE-79 Cross Site Scripting","CWE-94 Code Injection"],"metrics":{"cvssMetricV40":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":2,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","baseScore":3.5,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.1,"impactScore":1.4}],"cvssMetricV2":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N","baseScore":4,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"10255","Ordinal":"1","Title":"Ascensio System SIA OnlyOffice Comment Messages.aspx cross site ","CVE":"CVE-2025-10255","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"10255","Ordinal":"1","NoteData":"A vulnerability was determined in Ascensio System SIA OnlyOffice up to 12.7.0. Impacted is an unknown function of the file /Products/Projects/Messages.aspx of the component Comment Handler. Executing manipulation can lead to cross site scripting. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was informed early about this issue and replied: \"We are already working on this case, and the issues will be resolved in one of the upcoming patches.\"","Type":"Description","Title":"Ascensio System SIA OnlyOffice Comment Messages.aspx cross site "}]}}}