CVE-2026-42611

EUVD-2026-29069

11.05.2026, 16:17

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.

Cross-site Scripting

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.9 HIGH	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 12%

Affected Products (NVD)

Vendor	Product	Version
getgrav	grav	𝑥 ≤ 1.8.0
getgrav	grav	2.0.0:beta1

𝑥

= Vulnerable software versions

Known Exploits!

Common Weakness Enumeration

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References

https://github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663

https://github.com/getgrav/grav/security/advisories/GHSA-w8cg-7jcj-4vv2