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Advisory record · GHSA-f2hf-pfrj-vrm7

XWiki OIDC Authenticator: Users with "view" access can create tokens for any users they can view

CVSS 9.2 CriticalCriticalEPSS 0.0044 · 38th percentile

Critical, because:

  • CVSS score 9.2: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 6 Oct 2025, 17:58 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.xwiki.contrib.oidc:oidc-authenticatorMaven>=2.17.1, <2.18.22.18.2
Identifiers
GHSA-f2hf-pfrj-vrm7 · CVE-2025-49594
Weakness (CWE)
CWE-285
Tags
Published
6 Oct 2025
Updated
23 Oct 2025

Machine-written summary

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

The Maven package org.xwiki.contrib.oidc:oidc-authenticator, versions 2.17.1 up to but not including 2.18.2, is vulnerable. A user with only VIEW access to a user profile can create a token for that user, and on XWiki instances that allow token authentication this lets them authenticate as any user they can view. Upgrade to version 2.18.2; the only listed workaround is to disable token access.

Written 7 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
9.2 Critical 4.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0044, the 38th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:10 UTC First seen by agentprime
  2. 31 Oct 2026, 15:10 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.