CVE-2025-47936: Typo3/cms webhooks TYPO3 CMS Webhooks Server Side Vulnerability
LOWCVE-2025-47936 is a LOW (CVSS 3.3) typo3 cms webhooks server side vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Typo3/cms webhooks libraries in the Packagist ecosystem. The issue involves typo3 cms webhooks server side request forgery. Remediation is available by upgrading affected packages to version 12.4.31, 13.4.12.
CVE-2025-47936 at a Glance
Security Impact
CVSS: 3.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L).
How to Fix CVE-2025-47936
To remediate this vulnerability, upgrade all affected Typo3/cms webhooks dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade typo3/cms-webhooks to 12.4.31Upgrade typo3/cms-webhooks to 13.4.12Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for typo3/cms-webhooksHow to Check if You Are Affected
To determine whether your application is affected by CVE-2025-47936, inspect your project dependencies for Typo3/cms webhooks:
inspect dependencies for typo3/cms-webhooksAnalyze the terminal output to locate any version of Typo3/cms webhooks in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 12.4.31), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Typo3/cms webhooks, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2025-47936 Affected Typo3/cms webhooks Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
typo3/cms-webhooks
|
Packagist |
≥ 12.0.0
< 12.4.31
|
12.4.31
|
|
typo3/cms-webhooks
|
Packagist |
≥ 13.0.0
< 13.4.12
|
13.4.12
|
References
Frequently Asked Questions
What is CVE-2025-47936?
Which Typo3/cms webhooks versions are affected?
What version fixes CVE-2025-47936?
Is typo3/cms-webhooks affected?
What is the CVSS score of CVE-2025-47936?
What CWE is associated with CVE-2025-47936?
How can I check Packagist dependencies for CVE-2025-47936?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-p4xx-m758-3hpx",
"modified" : "2025-05-20T19:20:55Z",
"published" : "2025-05-20T19:20:55Z",
"aliases" : [ "CVE-2025-47936" ],
"summary" : "TYPO3 CMS Webhooks Server Side Request Forgery",
"details" : "### 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> [!IMPORTANT]\n>\n> **Manual actions required**\n>\n> 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> \n> If the allowlist is not defined or set to `null`, all requests will be allowed.\n> If the allowlist is an empty `array`, all requests will be blocked.\n> \n> 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 & security team member Benjamin Franzke for fixing it.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms-webhooks"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "12.0.0"
}, {
"fixed" : "12.4.31"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 12.4.30"
}
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms-webhooks"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "13.0.0"
}, {
"fixed" : "13.4.12"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 13.4.11"
}
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/TYPO3/typo3/security/advisories/GHSA-p4xx-m758-3hpx"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-47936"
}, {
"type" : "WEB",
"url" : "https://github.com/TYPO3-CMS/webhooks/commit/0df8b8adae577876fa253679c9ef3fe2a7ee64fd"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/TYPO3-CMS/webhooks"
}, {
"type" : "WEB",
"url" : "https://typo3.org/security/advisory/typo3-core-sa-2025-012"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-918" ],
"severity" : "LOW",
"github_reviewed" : true,
"github_reviewed_at" : "2025-05-20T19:20:55Z",
"nvd_published_at" : "2025-05-20T14:15:50Z"
}
}