CVE-2026-2027CWE-79

AMP Enhancer <= 1.0.49 - Authenticated (Administrator+) Stored Cross-Site Scripting via AMP Custom CSS Setting

Medium · published February 14, 2026

CVSS v3.1
4.4
EPSS
0%
Percentile
13.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00235 · 13.6th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-14T04:35Z
EPSS history
Timeline
  • 14 FEB 04:35Z
    AMP Enhancer <= 1.0.49 - Authenticated (Administrator+) Stored Cross-Site Scripting via AMP Custom CSS Setting
    cvelistv5