PT-2026-26853 · WordPress · Comment Spam Wiper

Published 2026-03-21 · Updated 2026-03-21 · CVE-2026-3353

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Comment SPAM Wiper plugin for WordPress versions up to and including 1.2.1

Description The Comment SPAM Wiper plugin for WordPress is susceptible to Stored Cross-Site Scripting through the 'API Key' setting. Insufficient input sanitization and output escaping allow authenticated attackers with Administrator-level access or higher to inject arbitrary web scripts into pages. These scripts will execute when a user accesses the injected page. This issue only affects multi-site installations and installations where unfiltered html has been disabled.

Recommendations Update the Comment SPAM Wiper plugin to a version later than 1.2.1.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-3353

Affected Products

Comment Spam Wiper

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-3353 · Security Note
• https://twitter.com/CVEnew/status/2035237247101149670 · Twitter Post
• https://plugins.trac.wordpress.org/browser/comment-spam-wiper/tags/1.2.1/admin.php#L87 · Note
• https://twitter.com/VulmonFeeds/status/2035304868718444691 · Twitter Post
• https://plugins.trac.wordpress.org/browser/comment-spam-wiper/trunk/admin.php#L87 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/cdffbef4-5462-49b2-a97e-6a497147bc41?source=cve · Note