{"api_version":"1","generated_at":"2026-10-23T17:24:56+00:00","cve":"CVE-2026-115480","urls":{"html":"https://cve.report/CVE-2026-115480","api":"https://cve.report/api/cve/CVE-2026-115480.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-115480","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-115480"},"summary":{"title":"baserCMS: Public Web API mail-form submission bypasses image CAPTCHA","description":"baserCMS is a website development framework. In versions 5.0.0 before 5.3.2 and 5.4.0 before 5.4.2, the public POST /baser/api/bc-mail/mail_messages/add/{mailContentId}.json endpoint accepts submissions without enforcing the form's auth_captcha setting. BcMail\\Controller\\Api\\MailMessagesController::add() and MailMessagesService::create() omit the BcCaptchaService::check() verification of captcha_id and auth_captcha performed by MailController::submit() in the web UI. An unauthenticated attacker who can reach the API can therefore automate submissions without solving the enabled image challenge. The API disables FormProtection and has no rate limit; submissions can generate administrator-inbox spam, send attacker-influenced auto-replies to third parties when an email field is present, and accumulate mail_messages database records when save_info is enabled. The API already enforces the isAccepting() check added for CVE-2026-30878; the missing CAPTCHA check is a separate control failure. This issue has been patched in versions 5.3.2 and 5.4.2.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-10-23 14:17:52","updated_at":"2026-10-23 16:28:32"},"problem_types":["CWE-693","CWE-799","CWE-799 CWE-799: Improper Control of Interaction Frequency","CWE-693 CWE-693: Protection Mechanism Failure"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/baserproject/basercms/releases/tag/5.3.2","name":"https://github.com/baserproject/basercms/releases/tag/5.3.2","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/baserproject/basercms/commit/3444154ca40f308ade8991e54459248f866dcf61","name":"https://github.com/baserproject/basercms/commit/3444154ca40f308ade8991e54459248f866dcf61","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/baserproject/basercms/security/advisories/GHSA-cpxq-6gjp-m59g","name":"https://github.com/baserproject/basercms/security/advisories/GHSA-cpxq-6gjp-m59g","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/baserproject/basercms/releases/tag/5.4.2","name":"https://github.com/baserproject/basercms/releases/tag/5.4.2","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-115480","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115480","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"baserproject","product":"basercms","version":"affected >= 5.0.0, < 5.3.2","platforms":[]},{"source":"CNA","vendor":"baserproject","product":"basercms","version":"affected >= 5.4.0, < 5.4.2","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"basercms","vendor":"baserproject","versions":[{"status":"affected","version":">= 5.0.0, < 5.3.2"},{"status":"affected","version":">= 5.4.0, < 5.4.2"}]}],"descriptions":[{"lang":"en","value":"baserCMS is a website development framework. In versions 5.0.0 before 5.3.2 and 5.4.0 before 5.4.2, the public POST /baser/api/bc-mail/mail_messages/add/{mailContentId}.json endpoint accepts submissions without enforcing the form's auth_captcha setting. BcMail\\Controller\\Api\\MailMessagesController::add() and MailMessagesService::create() omit the BcCaptchaService::check() verification of captcha_id and auth_captcha performed by MailController::submit() in the web UI. An unauthenticated attacker who can reach the API can therefore automate submissions without solving the enabled image challenge. The API disables FormProtection and has no rate limit; submissions can generate administrator-inbox spam, send attacker-influenced auto-replies to third parties when an email field is present, and accumulate mail_messages database records when save_info is enabled. The API already enforces the isAccepting() check added for CVE-2026-30878; the missing CAPTCHA check is a separate control failure. This issue has been patched in versions 5.3.2 and 5.4.2."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-799","description":"CWE-799: Improper Control of Interaction Frequency","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-693","description":"CWE-693: Protection Mechanism Failure","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-23T13:37:32.184Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/baserproject/basercms/security/advisories/GHSA-cpxq-6gjp-m59g","tags":["x_refsource_CONFIRM"],"url":"https://github.com/baserproject/basercms/security/advisories/GHSA-cpxq-6gjp-m59g"},{"name":"https://github.com/baserproject/basercms/commit/3444154ca40f308ade8991e54459248f866dcf61","tags":["x_refsource_MISC"],"url":"https://github.com/baserproject/basercms/commit/3444154ca40f308ade8991e54459248f866dcf61"},{"name":"https://github.com/baserproject/basercms/releases/tag/5.3.2","tags":["x_refsource_MISC"],"url":"https://github.com/baserproject/basercms/releases/tag/5.3.2"},{"name":"https://github.com/baserproject/basercms/releases/tag/5.4.2","tags":["x_refsource_MISC"],"url":"https://github.com/baserproject/basercms/releases/tag/5.4.2"}],"source":{"advisory":"GHSA-cpxq-6gjp-m59g","discovery":"UNKNOWN"},"title":"baserCMS: Public Web API mail-form submission bypasses image CAPTCHA"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-115480","datePublished":"2026-10-23T13:37:32.184Z","dateReserved":"2026-10-22T15:06:52.738Z","dateUpdated":"2026-10-23T13:37:32.184Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-23 14:17:52","lastModifiedDate":"2026-10-23 16:28:32","problem_types":["CWE-693","CWE-799","CWE-799 CWE-799: Improper Control of Interaction Frequency","CWE-693 CWE-693: Protection Mechanism Failure"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":1.4}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"115480","Ordinal":"1","Title":"baserCMS: Public Web API mail-form submission bypasses image CAP","CVE":"CVE-2026-115480","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"115480","Ordinal":"1","NoteData":"baserCMS is a website development framework. In versions 5.0.0 before 5.3.2 and 5.4.0 before 5.4.2, the public POST /baser/api/bc-mail/mail_messages/add/{mailContentId}.json endpoint accepts submissions without enforcing the form's auth_captcha setting. BcMail\\Controller\\Api\\MailMessagesController::add() and MailMessagesService::create() omit the BcCaptchaService::check() verification of captcha_id and auth_captcha performed by MailController::submit() in the web UI. An unauthenticated attacker who can reach the API can therefore automate submissions without solving the enabled image challenge. The API disables FormProtection and has no rate limit; submissions can generate administrator-inbox spam, send attacker-influenced auto-replies to third parties when an email field is present, and accumulate mail_messages database records when save_info is enabled. The API already enforces the isAccepting() check added for CVE-2026-30878; the missing CAPTCHA check is a separate control failure. This issue has been patched in versions 5.3.2 and 5.4.2.","Type":"Description","Title":"baserCMS: Public Web API mail-form submission bypasses image CAP"}]}}}