CVE-2026-64851

Grav Shortcode Core Plugin allows for the development shortcode plugins that utilize the common format utilized by WordPress and BBCode. Prior to 6.2.2, Grav Shortcode Core passes shortcode syntax through Security::detectXss() because it contains no literal less-than character, then ColorShortcode.php and related attribute handlers concatenate an attacker-controlled parameter into HTML without encoding. An account with admin.pages permission can close the generated attribute and add an event handler, creating stored cross-site scripting that executes for visitors or administrators who view the page. This issue is fixed in version 6.2.2.

CVSS

No CVSS.

References

Link	Resource
https://github.com/getgrav/grav-plugin-shortcode-core/commit/2a55eac8a2cc7f6c2d4923ab2fa7991039620597
https://github.com/getgrav/grav-plugin-shortcode-core/releases/tag/6.2.2
https://github.com/getgrav/grav/security/advisories/GHSA-q5fw-vpqc-fgph
https://github.com/getgrav/grav/security/advisories/GHSA-q5fw-vpqc-fgph

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 16:18

Updated : 2026-09-09 21:13

NVD link : CVE-2026-64851

Mitre link : CVE-2026-64851

CVE.ORG link : CVE-2026-64851

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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