GHSA-cgvr-f65r-pjv3
Suggest an improvement- Source
- https://github.com/advisories/GHSA-cgvr-f65r-pjv3
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-cgvr-f65r-pjv3/GHSA-cgvr-f65r-pjv3.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-cgvr-f65r-pjv3
- Withdrawn
- 2026-09-17T17:28:19Z
- Published
- 2026-08-14T12:31:26Z
- Modified
- 2026-09-17T17:45:04Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- 5.1 (Medium) CVSS_V4 - 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- Duplicate Advisory: Grav: Stored XSS via quoted-attribute bypass in detectXss
- Details
-
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This advisory has been withdrawn because it is a duplicate of GHSA-269c-h76q-8cxw.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. - Database specific
{ "cwe_ids": [ "CWE-79" ], "github_reviewed": true, "github_reviewed_at": "2026-09-17T17:28:19Z", "nvd_published_at": "2026-08-14T12:16:46Z", "severity": "MODERATE" }- References
Affected packages
Packagist / getgrav/grav
Package
- Name
- getgrav/grav
- Purl
- pkg:composer/getgrav/grav