{"id":"CVE-2026-115480","aliases":[],"cve":{"records":[{"id":"CVE-2026-115480","source":"GitHub_M","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-22T15:06:52.738Z","published":"2026-10-23T13:37:32.184Z","modified":"2026-10-29T17:46:42.337Z"}],"publishers":[{"name":"GitHub_M","role":"CNA","organizationId":"a0819718-46f1-4df5-94e2-005712e83aaa","modified":"2026-10-23T13:37:32.184Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-29T17:46:42.337Z"}],"references":[{"url":"https://github.com/baserproject/basercms/security/advisories/GHSA-cpxq-6gjp-m59g","tags":["x_refsource_CONFIRM"],"source":"GitHub_M"},{"url":"https://github.com/baserproject/basercms/commit/3444154ca40f308ade8991e54459248f866dcf61","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/baserproject/basercms/releases/tag/5.3.2","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/baserproject/basercms/releases/tag/5.4.2","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/baserproject/basercms/security/advisories/GHSA-cpxq-6gjp-m59g","tags":["exploit"],"source":"CISA-ADP"}],"weaknesses":[{"id":"CWE-799","description":"CWE-799: Improper Control of Interaction Frequency","source":"GitHub_M"},{"id":"CWE-693","description":"CWE-693: Protection Mechanism Failure","source":"GitHub_M"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-29T17:45:56.666716Z","decisions":[{"name":"Exploitation","value":"poc"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"baserCMS: Public Web API mail-form submission bypasses image CAPTCHA","titleSource":"GitHub_M","descriptionSource":"GitHub_M","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.","score":5.3,"severity":"medium","published":"2026-10-23T13:37:32.184Z","modified":"2026-10-29T17:46:42.337Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"baserproject","name":"basercms","platforms":[],"versions":[{"version":">= 5.0.0, < 5.3.2","status":"affected"},{"version":">= 5.4.0, < 5.4.2","status":"affected"}],"cpes":[],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-115480"}],"remediation":[],"references":["https://github.com/baserproject/basercms/security/advisories/GHSA-cpxq-6gjp-m59g","https://github.com/baserproject/basercms/commit/3444154ca40f308ade8991e54459248f866dcf61","https://github.com/baserproject/basercms/releases/tag/5.3.2","https://github.com/baserproject/basercms/releases/tag/5.4.2"],"sources":[{"name":"CVE","id":"CVE-2026-115480","modified":"2026-10-29T17:46:42.337Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-115480"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3}],"sourceAffected":[],"observedAt":"2026-10-29T17:50:45.806Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T09:35:34.504Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T17:55:34.041Z","attemptedAt":"2026-10-29T17:55:34.041Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-29T17:55:33.051Z","attemptedAt":"2026-10-29T17:55:33.051Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T17:55:34.087Z","attemptedAt":"2026-10-29T17:55:34.087Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-29T17:55:33.049Z","attemptedAt":"2026-10-29T17:55:33.049Z"}],"evidence":[{"source":"FIRST EPSS","id":"CVE-2026-115480","url":"https://www.first.org/epss/","probability":0.00315,"percentile":0.24409,"date":"2026-10-29","checkedAt":"2026-10-29T17:55:33.049Z"},{"source":"NVD","id":"CVE-2026-115480","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115480","modified":"2026-10-23T16:28:32.357","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","checkedAt":"2026-10-29T17:55:34.041Z"},{"source":"ENISA EUVD","id":"EUVD-2026-108987","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-108987","modified":"Oct 23, 2026, 1:37:32 PM","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","checkedAt":"2026-10-29T17:55:34.087Z"}],"aiSummary":{"text":"baserCMS versions 5.0.0 before 5.3.2 and 5.4.0 before 5.4.2 have a vulnerability where the public Web API mail-form submission bypasses image CAPTCHA, allowing unauthenticated attackers to automate submissions. The API lacks rate limiting and FormProtection. This can lead to spam and accumulation of database records.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:52:11.948Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-115480"}]}}