Vulnerability · Published Apr 29, 2026 · Assigned by Wordfence
CVE-2026-2902WP Meteor Website Speed Optimization Addon <= 3.4.16 - Unauthenticated Stored Cross-Site Scripting via Comment
Medium 6.1
In plain English
A medium-severity cross-site scripting in WP Meteor Website Speed Optimization Addon from aguidrevitch. 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 12% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| aguidrevitch | WP Meteor Website Speed Optimization Addon | 0 – through 3.4.16 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/dc92b20a-fb9b-477c-8fe4-68897c1fd07e?source=cve
- https://plugins.trac.wordpress.org/browser/wp-meteor/trunk/blocker/FirstInteraction/UltimateReorder.php#L68
- https://plugins.trac.wordpress.org/browser/wp-meteor/trunk/blocker/FirstInteraction/UltimateReorder.php#L186
- https://plugins.trac.wordpress.org/browser/wp-meteor/trunk/frontend/Rewrite.php#L43
- https://plugins.trac.wordpress.org/changeset/3466538/