CVE-2026-75828

Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss() function where unpaired quotes in unquoted attribute values bypass event-handler detection. Authenticated editors can inject event handlers like onerror= that pass validation and execute in visitor browsers when page content is rendered.

CVSS v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/getgrav/grav/security/advisories/GHSA-vfmf-q6x9-cw96
https://www.vulncheck.com/advisories/grav-before-stored-xss-via-detectxss-quote-bypass
https://github.com/getgrav/grav/security/advisories/GHSA-vfmf-q6x9-cw96

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-18 12:19

Updated : 2026-09-08 20:32

NVD link : CVE-2026-75828

Mitre link : CVE-2026-75828

CVE.ORG link : CVE-2026-75828

JSON object : View

Products Affected

No product.

CWE

CWE-79

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

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