{"id":"CVE-2025-47936","aliases":["EUVD-2025-15820","GHSA-p4xx-m758-3hpx"],"status":"published","title":"TYPO3 Vulnerable to Server Side Request Forgery via Webhooks","description":"TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, Webhooks are inherently vulnerable to Cross-Site Request Forgery (CSRF), which can be exploited by adversaries to target internal resources (e.g., localhost or other services on the local network). While this is not a vulnerability in TYPO3 itself, it may enable attackers to blindly access systems that would otherwise be inaccessible. An administrator-level backend user account is required to exploit this vulnerability. Users should update to TYPO3 version 12.4.31 LTS or 13.4.12 LTS to fix the problem.","severity":{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00274,"percentile":0.20043,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-918"],"published":"2025-05-20T13:23:52Z","modified":"2026-10-28T02:30:54Z","fixes":[{"ecosystem":"Packagist","package":"typo3/cms-webhooks","fixed_in":["12.4.31","13.4.12"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-webhooks","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12.0.0"},{"last_affected":"12.4.30"},{"fixed":"12.4.31"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-webhooks","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"last_affected":"13.4.11"},{"fixed":"13.4.12"}]}]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-webhooks","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12.0.0"},{"fixed":"12.4.31"}]}],"versions":["v12.3.0","v12.4.0","v12.4.1","v12.4.10","v12.4.11","v12.4.12","v12.4.13","v12.4.14","v12.4.15","v12.4.16","v12.4.17","v12.4.18","v12.4.19","v12.4.2","v12.4.20","v12.4.21","v12.4.22","v12.4.23","v12.4.24","v12.4.25","v12.4.26","v12.4.27","v12.4.28","v12.4.29","v12.4.3","v12.4.30","v12.4.4","v12.4.5","v12.4.6","v12.4.7","v12.4.8","v12.4.9"]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-webhooks","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"13.4.12"}]}],"versions":["v13.0.0","v13.0.1","v13.1.0","v13.1.1","v13.2.1","v13.3.0","v13.3.1","v13.4.0","v13.4.1","v13.4.10","v13.4.11","v13.4.2","v13.4.3","v13.4.4","v13.4.5","v13.4.6","v13.4.7","v13.4.8","v13.4.9"]}],"products":[{"vendor":"typo3","product":"typo3"}],"references":[{"url":"https://github.com/TYPO3/typo3/security/advisories/GHSA-p4xx-m758-3hpx","tags":["x_refsource_CONFIRM","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://typo3.org/security/advisory/typo3-core-sa-2025-012","tags":["x_refsource_MISC","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47936","tags":["advisory"]},{"url":"https://github.com/TYPO3-CMS/webhooks/commit/0df8b8adae577876fa253679c9ef3fe2a7ee64fd","tags":["web"]},{"url":"https://github.com/advisories/GHSA-p4xx-m758-3hpx"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47936.json","tags":["advisory"]},{"url":"https://github.com/TYPO3-CMS/webhooks","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-47936","title":"TYPO3 Vulnerable to Server Side Request Forgery via Webhooks","description":"TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, Webhooks are inherently vulnerable to Cross-Site Request Forgery (CSRF), which can be exploited by adversaries to target internal resources (e.g., localhost or other services on the local network). While this is not a vulnerability in TYPO3 itself, it may enable attackers to blindly access systems that would otherwise be inaccessible. An administrator-level backend user account is required to exploit this vulnerability. Users should update to TYPO3 version 12.4.31 LTS or 13.4.12 LTS to fix the problem.","status":"published","published":"2025-05-20T13:23:52.952Z","modified":"2025-05-20T13:59:19.751Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:32:26.320248Z"}],"euvd":[{"id":"EUVD-2025-15820","description":"TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, Webhooks are inherently vulnerable to Cross-Site Request Forgery (CSRF), which can be exploited by adversaries to target internal resources (e.g., localhost or other services on the local network). While this is not a vulnerability in TYPO3 itself, it may enable attackers to blindly access systems that would otherwise be inaccessible. An administrator-level backend user account is required to exploit this vulnerability. Users should update to TYPO3 version 12.4.31 LTS or 13.4.12 LTS to fix the problem.","status":"published","published":"2025-05-20T13:23:52Z","modified":"2025-05-20T13:59:19Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L","level":"low"}],"updated_at":"2026-11-02T20:32:43.763029Z"}],"ghsa":[{"id":"GHSA-p4xx-m758-3hpx","title":"TYPO3 CMS Webhooks Server Side Request Forgery","description":"### Problem\nWebhooks are inherently vulnerable to Server-Side Request Forgery (SSRF), which can be exploited by adversaries to target internal resources (e.g., _localhost_ or other services on the local network). While this is not a vulnerability in TYPO3 itself, it may enable attackers to blindly access systems that would otherwise be inaccessible. An administrator-level backend user account is required to exploit this vulnerability.\n\n### Solution\nUpdate to TYPO3 versions 12.4.31 LTS, 13.4.12 LTS that fix the problem described.\n\n\u003e [!IMPORTANT]\n\u003e\n\u003e **Manual actions required**\n\u003e\n\u003e To mitigate potential SSRF risks via webhooks, it is recommended to explicitly allow access only to trusted hosts. This can be achieved by configuring the allowlist in `$GLOBALS['TYPO3_CONF_VARS']['HTTP']['allowed_hosts']['webhooks']`.\n\u003e \n\u003e If the allowlist is not defined or set to `null`, all requests will be allowed.\n\u003e If the allowlist is an empty `array`, all requests will be blocked.\n\u003e \n\u003e By default, the factory setting allows all requests. This prevents existing webhooks from failing after upgrading to the affected TYPO3 versions. Administrators must configure this setting manually to enforce restrictions.\n\n\n### Credits\nThanks to the National Cyber Security Center (NCSC) of Switzerland for reporting this issue, and to TYPO3 core \u0026 security team member Benjamin Franzke for fixing it.","status":"published","published":"2025-05-20T19:20:55Z","modified":"2025-05-20T19:20:58Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L","level":"low"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:38:43.998596Z"}],"nvd":[{"id":"CVE-2025-47936","description":"TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, Webhooks are inherently vulnerable to Cross-Site Request Forgery (CSRF), which can be exploited by adversaries to target internal resources (e.g., localhost or other services on the local network). While this is not a vulnerability in TYPO3 itself, it may enable attackers to blindly access systems that would otherwise be inaccessible. An administrator-level backend user account is required to exploit this vulnerability. Users should update to TYPO3 version 12.4.31 LTS or 13.4.12 LTS to fix the problem.","status":"published","published":"2025-05-20T14:15:50.287Z","modified":"2026-06-17T09:28:51.807Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L","level":"low","assessor":"secondary"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:11:09.125937Z"}],"osv":[{"id":"CVE-2025-47936","title":"TYPO3 Vulnerable to Server Side Request Forgery via Webhooks","description":"TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, Webhooks are inherently vulnerable to Cross-Site Request Forgery (CSRF), which can be exploited by adversaries to target internal resources (e.g., localhost or other services on the local network). While this is not a vulnerability in TYPO3 itself, it may enable attackers to blindly access systems that would otherwise be inaccessible. An administrator-level backend user account is required to exploit this vulnerability. Users should update to TYPO3 version 12.4.31 LTS or 13.4.12 LTS to fix the problem.","status":"published","published":"2025-05-20T13:23:52.952Z","modified":"2026-10-28T02:30:54.249315821Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L","level":"low"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:44:50.037003Z"},{"id":"GHSA-p4xx-m758-3hpx","title":"TYPO3 CMS Webhooks Server Side Request Forgery","description":"### Problem\nWebhooks are inherently vulnerable to Server-Side Request Forgery (SSRF), which can be exploited by adversaries to target internal resources (e.g., _localhost_ or other services on the local network). While this is not a vulnerability in TYPO3 itself, it may enable attackers to blindly access systems that would otherwise be inaccessible. An administrator-level backend user account is required to exploit this vulnerability.\n\n### Solution\nUpdate to TYPO3 versions 12.4.31 LTS, 13.4.12 LTS that fix the problem described.\n\n\u003e [!IMPORTANT]\n\u003e\n\u003e **Manual actions required**\n\u003e\n\u003e To mitigate potential SSRF risks via webhooks, it is recommended to explicitly allow access only to trusted hosts. This can be achieved by configuring the allowlist in `$GLOBALS['TYPO3_CONF_VARS']['HTTP']['allowed_hosts']['webhooks']`.\n\u003e \n\u003e If the allowlist is not defined or set to `null`, all requests will be allowed.\n\u003e If the allowlist is an empty `array`, all requests will be blocked.\n\u003e \n\u003e By default, the factory setting allows all requests. This prevents existing webhooks from failing after upgrading to the affected TYPO3 versions. Administrators must configure this setting manually to enforce restrictions.\n\n\n### Credits\nThanks to the National Cyber Security Center (NCSC) of Switzerland for reporting this issue, and to TYPO3 core \u0026 security team member Benjamin Franzke for fixing it.","status":"published","published":"2025-05-20T19:20:55Z","modified":"2025-05-20T20:13:27.507693Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L","level":"low"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:46:52.534897Z"}]}}