CVE-2026-42611: Grav is Vulnerable to Stored XSS via Tag Injection

May 5, 2026 (updated May 13, 2026)

A low-privileged (with the ability to create a page) user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information available under /admin/config/info whenever a Super Admin visits the page; which can further be chained with the use of admin-nonce to do a complete server compromise (RCE).

References

github.com/advisories/GHSA-w8cg-7jcj-4vv2
github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663
github.com/getgrav/grav/security/advisories/GHSA-w8cg-7jcj-4vv2
nvd.nist.gov/vuln/detail/CVE-2026-42611

Code Behaviors & Features

Detect and mitigate CVE-2026-42611 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →