CVE-2026-11982

Stored XSS via missing XSS safety check in Admin2 Pages API partial validation

State: Published
Severity: 5.1 Medium
Published: Jun 18, 2026
Updated: Jun 18, 2026
Reserved: Jun 11, 2026

Description

Grav 2.0.0-rc.9 with Admin2 2.0.0-rc.14 contains a stored cross-site scripting (XSS) vulnerability in the Admin2 Pages API save flow.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N	Fluid Attacks

Weaknesses

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

Affected Products

Product	Versions
grav-plugin-apiGrav	1.7.52Affected

References

https://fluidattacks.com/es/advisories/luisthird-party-advisory
https://github.com/getgrav/grav-plugin-apiproduct
https://github.com/getgrav/grav-plugin-api/commit/b8ca62eddb7dbea92075a78b1c0a507f03d66d4apatch
https://github.com/getgrav/grav/security/advisories/GHSA-5wc5-7v9g-f7v6vendor-advisory

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