{"api_version":"1","generated_at":"2026-07-25T01:16:16+00:00","cve":"CVE-2026-16156","urls":{"html":"https://cve.report/CVE-2026-16156","api":"https://cve.report/api/cve/CVE-2026-16156.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-16156","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-16156"},"summary":{"title":"SourceCodester Class and Exam Timetabling System forexam.php cross site scripting","description":"A security flaw has been discovered in SourceCodester Class and Exam Timetabling System 1.0. This affects an unknown part of the file /forexam.php. The manipulation of the argument day results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.","state":"PUBLISHED","assigner":"VulDB","published_at":"2026-07-18 22:16:43","updated_at":"2026-07-21 16:17:05"},"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:R","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:R","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:R","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:R","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:UR","data":{"baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","version":"2.0"}}],"references":[{"url":"https://www.sourcecodester.com/","name":"https://www.sourcecodester.com/","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/vuln/379921","name":"https://vuldb.com/vuln/379921","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/vuln/379921/cti","name":"https://vuldb.com/vuln/379921/cti","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/justconter/cve/issues/3","name":"https://github.com/justconter/cve/issues/3","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/submit/857081","name":"https://vuldb.com/submit/857081","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/cve/CVE-2026-16156","name":"https://vuldb.com/cve/CVE-2026-16156","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-16156","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16156","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"SourceCodester","product":"Class and Exam Timetabling System","version":"affected 1.0","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-07-17T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"source":"CNA","time":"2026-07-17T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"source":"CNA","time":"2026-07-17T21:39:32.000Z","lang":"en","value":"VulDB entry last update"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"justconter (VulDB User)","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"16156","cve":"CVE-2026-16156","epss":"0.001990000","percentile":"0.098780000","score_date":"2026-07-21","updated_at":"2026-07-22 00:11:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-16156","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-07-21T13:40:24.685433Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-07-21T14:58:44.621Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"cpes":["cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:*"],"product":"Class and Exam Timetabling System","vendor":"SourceCodester","versions":[{"status":"affected","version":"1.0"}]}],"credits":[{"lang":"en","type":"reporter","value":"justconter (VulDB User)"}],"descriptions":[{"lang":"en","value":"A security flaw has been discovered in SourceCodester Class and Exam Timetabling System 1.0. This affects an unknown part of the file /forexam.php. The manipulation of the argument day results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks."}],"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:R","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:R","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:UR","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":"2026-07-18T21:00:10.097Z","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB"},"references":[{"name":"VDB-379921 | SourceCodester Class and Exam Timetabling System forexam.php cross site scripting","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/379921"},{"name":"VDB-379921 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/379921/cti"},{"name":"CVE-2026-16156 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-16156"},{"name":"Submit #857081 | sourcecodester Class and Exam Timetabling System V1.0 cross site scripting","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/857081"},{"tags":["exploit","issue-tracking"],"url":"https://github.com/justconter/cve/issues/3"},{"tags":["product"],"url":"https://www.sourcecodester.com/"}],"tags":["x_freeware"],"timeline":[{"lang":"en","time":"2026-07-17T00:00:00.000Z","value":"Advisory disclosed"},{"lang":"en","time":"2026-07-17T02:00:00.000Z","value":"VulDB entry created"},{"lang":"en","time":"2026-07-17T21:39:32.000Z","value":"VulDB entry last update"}],"title":"SourceCodester Class and Exam Timetabling System forexam.php cross site scripting"}},"cveMetadata":{"assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","assignerShortName":"VulDB","cveId":"CVE-2026-16156","datePublished":"2026-07-18T21:00:10.097Z","dateReserved":"2026-07-17T19:34:13.229Z","dateUpdated":"2026-07-21T14:58:44.621Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-18 22:16:43","lastModifiedDate":"2026-07-21 16:17:05","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}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-21T13:40:24.685433Z","id":"CVE-2026-16156","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"16156","Ordinal":"1","Title":"SourceCodester Class and Exam Timetabling System forexam.php cro","CVE":"CVE-2026-16156","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"16156","Ordinal":"1","NoteData":"A security flaw has been discovered in SourceCodester Class and Exam Timetabling System 1.0. This affects an unknown part of the file /forexam.php. The manipulation of the argument day results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.","Type":"Description","Title":"SourceCodester Class and Exam Timetabling System forexam.php cro"}]}}}