{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-115480", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-22T15:06:52.738Z", "datePublished": "2026-10-23T13:37:32.184Z", "dateUpdated": "2026-10-23T13:37:32.184Z"}, "containers": {"cna": {"title": "baserCMS: Public Web API mail-form submission bypasses image CAPTCHA", "problemTypes": [{"descriptions": [{"cweId": "CWE-799", "lang": "en", "description": "CWE-799: Improper Control of Interaction Frequency", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-693", "lang": "en", "description": "CWE-693: Protection Mechanism Failure", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "baserproject", "product": "basercms", "versions": [{"version": ">= 5.0.0, < 5.3.2", "status": "affected"}, {"version": ">= 5.4.0, < 5.4.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-23T13:37:32.184Z"}, "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."}], "source": {"advisory": "GHSA-cpxq-6gjp-m59g", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "basercms", "vendor": "baserproject", "versions": [{"status": "affected", "version": ">= 5.0.0, < 5.3.2"}, {"status": "affected", "version": ">= 5.4.0, < 5.4.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-115480", "lastModified": "2026-10-23T16:28:32.357", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-23T14:17:52.160", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/baserproject/basercms/commit/3444154ca40f308ade8991e54459248f866dcf61"}, {"source": "security-advisories@github.com", "url": "https://github.com/baserproject/basercms/releases/tag/5.3.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/baserproject/basercms/releases/tag/5.4.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/baserproject/basercms/security/advisories/GHSA-cpxq-6gjp-m59g"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-693"}, {"lang": "en", "value": "CWE-799"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-10-23T17:15:07.223184+00:00", "updated": "2026-10-23T17:15:07.223189+00:00", "vendors": []}