---
id: GHSA-cgvr-f65r-pjv3
title: 'Duplicate Advisory: Grav: Stored XSS via quoted-attribute bypass in detectXss'
summary: 'Duplicate Advisory: Grav: Stored XSS via quoted-attribute bypass in detectXss'
severity: medium
cvss: 5.4
cwe:
  - CWE-79
vendor: getgrav
product: getgrav/grav
ecosystem: composer
affected:
  - 'getgrav/grav >= 1.5.2, <= 2.0.12'
published: '2026-08-14'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:28:20Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-cgvr-f65r-pjv3'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-269c-h76q-8cxw'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72832'
  - url: >-
      https://github.com/getgrav/grav/commit/ad9709f865b09b68798fb1ac375b484a8cc1d892
  - url: >-
      https://www.vulncheck.com/advisories/grav-before-stored-xss-via-quoted-attribute-bypass
  - url: 'https://github.com/advisories/GHSA-cgvr-f65r-pjv3'
tags:
  - ghsa
  - composer
ingestedAt: '2026-09-17T18:25:16.053Z'
---

## Overview

### Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-269c-h76q-8cxw. This link is maintained to preserve external references.

### Original Description
Grav versions from 1.5.2 through 2.0.12 contain a stored cross-site scripting vulnerability in the Security::detectXss() function (system/src/Grav/Common/Security.php). The event-handler scan is anchored at `<` and uses `[^>]*?`, which cannot cross the first literal `>`; when a `>` appears inside a quoted attribute value the browser keeps the tag open and parses a subsequent event handler (e.g. onerror), so the detector and browser disagree. A page editor without admin.super privileges can save page content such as `<img src=x title=">" onerror=alert(document.domain)>`, which is accepted, stored, and executed in the site origin when any visitor (including unauthenticated users) views the page. Fixed in 2.0.13.

## Affected packages

- `getgrav/grav >= 1.5.2, <= 2.0.12`

## Remediation

Refer to the advisory for the patched release.