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Advisory record · GHSA-pv7v-ph6g-3gxv

Improper Neutralization of Invalid Characters in Data Attribute Names in org.xwiki.commons:xwiki-commons-xml

CVSS 9.1 CriticalCriticalEPSS 0.0082 · 57th percentile

Critical, because:

  • CVSS score 9.1: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 9 May 2023, 19:59 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.xwiki.commons:xwiki-commons-xmlMaven>=14.6-rc-1, <14.10.414.10.4
Identifiers
GHSA-pv7v-ph6g-3gxv · CVE-2023-31126
Weakness (CWE)
CWE-79 · CWE-86
Tags
Published
9 May 2023
Updated
10 Sept 2026

Machine-written summary

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

The org.xwiki.commons:xwiki-commons-xml package from 14.6-rc-1 before 14.10.4 is vulnerable to cross-site scripting through invalid data attribute names in its HTML sanitizer. An attacker can inject JavaScript via XWiki syntax in content such as comments, which runs when a user hovers over the link; if the user has programming rights, this can lead to server-side code execution. Upgrade to version 14.10.4 or later; no workarounds are listed.

Written 2 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
9.1 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0082, the 57th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:18 UTC First seen by agentprime
  2. 31 Oct 2026, 14:18 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.