What’s Vulnerable › Vulnerabilities

CVE-2026-2902: WP Meteor Website Speed Optimization Addon <= 3.4.16 - Unauthenticated Stored Cross-Site Scripting via Comment

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-29 · updated 2026-06-17
• Weakness: CWE-79

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

• aguidrevitch WP Meteor Website Speed Optimization Addon: through 3.4.16

References

• https://plugins.trac.wordpress.org/browser/wp-meteor/trunk/blocker/FirstInteraction/UltimateReorder.php#L186
• https://plugins.trac.wordpress.org/browser/wp-meteor/trunk/blocker/FirstInteraction/UltimateReorder.php#L68
• https://plugins.trac.wordpress.org/browser/wp-meteor/trunk/frontend/Rewrite.php#L43
• https://plugins.trac.wordpress.org/changeset/3466538/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/dc92b20a-fb9b-477c-8fe4-68897c1fd07e?source=cve

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