CVE-2026-2027

medium

Description

The AMP Enhancer – Compatibility Layer for Official AMP Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the AMP Custom CSS setting in all versions up to, and including, 1.0.49 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/14014260-e872-48d8-8788-f89dbeec2080?source=cve

https://plugins.trac.wordpress.org/browser/amp-enhancer/trunk/admin/amp-enhancer-custom-css/amp-enhancer-custom-css.php#L13

https://plugins.trac.wordpress.org/browser/amp-enhancer/tags/1.0.49/admin/amp-enhancer-custom-css/amp-enhancer-custom-css.php#L13

https://gist.github.com/indonumberone/b373b970da88e87a218aed58d92ccfb2

Details

Source: Mitre, NVD

Published: 2026-02-14

Updated: 2026-02-14

Risk Information

CVSS v2

Base Score: 3.2

Vector: CVSS2#AV:N/AC:H/Au:M/C:P/I:P/A:N

Severity: Low

CVSS v3

Base Score: 4.4

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00028