Advisory record · GHSA-269c-h76q-8cxw

Grav: Stored XSS via quoted-attribute bypass in detectXss

CVSS 5.1 MediumEPSS 0.0031 · 24th percentile

Published by the GitHub Advisory Database at 17 Sept 2026, 17:28 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
getgrav/gravPackagist>=1.5.2, <2.0.132.0.13
Identifiers
GHSA-269c-h76q-8cxw · CVE-2026-72832 · PKSA-rstv-2c4g-sjjn
Weakness (CWE)
CWE-79
Published
17 Sept 2026
Updated
17 Sept 2026

Machine-written summary

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

Grav versions from 1.5.2 up to but not including 2.0.13 (Packagist getgrav/grav) contain a stored cross-site scripting flaw in the XSS detector used when saving pages. A user with page editing rights but without the admin.super permission can place an event handler inside a quoted attribute after a ">" character, which the detector misses, so the page is saved and the script runs in the site's origin for any visitor who opens it. The fix is to upgrade to version 2.0.13.

Written 31 Oct 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
5.1 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0031, the 24th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 13:56 UTC First seen by agentprime
  2. 31 Oct 2026, 13:56 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.