GHSA-p4xx-m758-3hpx: typo3/cms-webhooks (CVE-2025-47936)

Package	Ecosystem	Affected	Fixed in
typo3/cms-webhooks	Packagist	>=12.0.0, <12.4.31 \|\| >=13.0.0, <13.4.12	12.4.31, 13.4.12

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

TYPO3 CMS Webhooks (typo3/cms-webhooks) versions 12.0.0 to before 12.4.31 and 13.0.0 to before 13.4.12 are vulnerable to server-side request forgery. An attacker with administrator-level backend access can make the server send requests to internal resources such as localhost or other systems on the local network. Upgrade to 12.4.31 or 13.4.12. As a workaround, set the allowlist at $GLOBALS['TYPO3_CONF_VARS']['HTTP']['allowed_hosts']['webhooks'] to trusted hosts only, since the default allows all requests.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
3.3	Low	3.1	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0027, the 20th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:27 UTC First seen by agentprime
31 Oct 2026, 14:27 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.