CVE-2026-42611 PUBLISHED

Grav: Stored XSS via Tag Injection

Assigner: GitHub_M
Reserved: 29.04.2026 Published: 11.05.2026 Updated: 11.05.2026

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, 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). This vulnerability is fixed in 2.0.0-beta.2.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:H
CVSS Score: 8.9

Product Status

Vendor getgrav
Product grav
Versions
  • Version < 2.0.0-beta.2 is affected

References

Problem Types

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE