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Advisory record · GHSA-74rh-c5rh-88vg

XWiki vulnerable to click-jacking through CSS injection in comments

CVSS 5.3 MediumEPSS 0.0032 · 24th percentile

Published by the GitHub Advisory Database at 12 Feb 2026, 15:54 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.xwiki.platform:xwiki-platform-webMaven>=17.5.0, <17.9.0 || >=17.0.0-rc-1, <17.4.6 || <16.10.1317.9.0, 17.4.6, 16.10.13
Identifiers
GHSA-74rh-c5rh-88vg · CVE-2026-26000
Weakness (CWE)
CWE-1021
Tags
Published
12 Feb 2026
Updated
12 Feb 2026

Machine-written summary

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

XWiki (org.xwiki.platform:xwiki-platform-web) versions from 17.5.0 before 17.9.0, from 17.0.0-rc-1 before 17.4.6, and before 16.10.13 are affected. An attacker who can inject CSS through wiki comments can turn the whole wiki into a clickable area that leads to a malicious page, enabling click-jacking. Upgrade to 17.9.0, 17.4.6, 16.10.13 or later, which require user confirmation before navigating to untrusted domains. No other workaround is listed.

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
5.3 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0032, the 24th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:21 UTC First seen by agentprime
  2. 31 Oct 2026, 14:21 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.