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Advisory record · GHSA-hj6f-7hp7-xg69

Mautic vulnerable to SSRF via webhook function

CVSS 2.7 LowEPSS 0.0030 · 23rd percentile

Published by the GitHub Advisory Database at 3 Sept 2025, 22:11 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
mautic/corePackagist>=4.4.0, <4.4.17 || >=5.0.0-alpha, <5.2.8 || >=6.0.0-alpha, <6.0.54.4.17, 5.2.8, 6.0.5
Identifiers
GHSA-hj6f-7hp7-xg69 · CVE-2025-9821 · PKSA-1vkq-hh1n-xfrh
Weakness (CWE)
CWE-918
Tags
Published
3 Sept 2025
Updated
3 Sept 2025

Machine-written summary

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

Mautic core versions from 4.4.0 before 4.4.17, from 5.0.0-alpha before 5.2.8, and from 6.0.0-alpha before 6.0.5 are affected. An attacker with a Mautic account that has webhook permissions can make the server send requests to internal services, bypassing firewalls, and can see part of the response if they can view webhook logs. Upgrade to 4.4.17, 5.2.8, or 6.0.5.

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

ScoreRatingCVSSVectorSource
2.7 Low 3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N CNA (Mautic)
  • CISA KEV Not listed.
  • EPSS 0.0030, the 23rd percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:26 UTC First seen by agentprime
  2. 31 Oct 2026, 14:26 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.