Vulnerability · Published Feb 14, 2026 · Assigned by Wordfence
CVE-2026-2027AMP Enhancer <= 1.0.49 - Authenticated (Administrator+) Stored Cross-Site Scripting via AMP Custom CSS Setting
Medium 4.4
In plain English
A medium-severity cross-site scripting in AMP Enhancer – Compatibility Layer for Official AMP Plugin from ampenhancer. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ampenhancer | AMP Enhancer – Compatibility Layer for Official AMP Plugin | 0 – through 1.0.49 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
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