Stored Cross-Site Scripting Vulnerability in Grav Web Platform
CVE-2026-42612

8.5HIGH

Key Information:

Vendor

Getgrav

Status
Grav
Vendor
CVE Published:
11 May 2026

What is CVE-2026-42612?

Grav, a file-based web platform, has a stored Cross-Site Scripting vulnerability that allows publisher-level accounts to execute arbitrary JavaScript. This security issue is due to a blacklist bypass in the detectXss() function when it processes unquoted HTML event attributes. The vulnerability impacts versions before 2.0.0-beta.2, and users are encouraged to update to the latest version to mitigate the risk.

Affected Version(s)

grav < 2.0.0-beta.2

References

https://github.com/getgrav/grav/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/getgrav/grav/commit/5a12f9be8314682c87...
x_refsource_MISC

CVSS V3.1

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.