CVE-2026-2902CWE-79

WP Meteor Website Speed Optimization Addon <= 3.4.16 - Unauthenticated Stored Cross-Site Scripting via Comment

Medium · published April 29, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
29.5
In the wild
Unconfirmed
What it is

The WP Meteor Website Speed Optimization Addon plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'frontend_rewrite' function's 'WPMETEOR[N]WPMETEOR' placeholder content in all versions up to, and including, 3.4.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00368 · 29.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-29T11:17Z
EPSS history
Timeline
  • 29 APR 11:17Z
    WP Meteor Website Speed Optimization Addon <= 3.4.16 - Unauthenticated Stored Cross-Site Scripting via Comment
    cvelistv5