CVE-2026-42611

Grav: Stored XSS via Tag Injection

State
Published
Severity
8.9 High
Published
May 11, 2026
Updated
May 11, 2026
Reserved
Apr 29, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.18.9 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:HGitHub_M

Weaknesses

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

Affected Products

ProductVersions
gravgetgrav
  • < 2.0.0-beta.2Affected

References

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