What is CVE-2026-3353?

CVE-2026-3353 is a medium-severity vulnerability in Intermod Comment Spam Wiper, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-03-21.

How severe is CVE-2026-3353?

Medium severity. CVSS v3 base score is 4.4 out of 10.

XSS in Intermod Comment Spam Wiper

CVE-2026-3353

The Comment SPAM Wiper plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'API Key' setting in all versions up to, and including, 1.2.1. This is due to insufficient input sanitization and output escaping. 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (8.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.

Affected products

Intermod Comment Spam Wiper — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-3353?: CVE-2026-3353 is a medium-severity vulnerability in Intermod Comment Spam Wiper, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-03-21.
How severe is CVE-2026-3353?: Medium severity. CVSS v3 base score is 4.4 out of 10.