CVE-2026-3620

The Word Replacer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'replacement' parameter in all versions up to, and including, 0.4. 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.

• CWE-20

• https://plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php#L191
• https://plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php#L230
• https://plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php#L339
• https://plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php#L343
• https://plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php#L191
• https://plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php#L230
• https://plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php#L339
• https://plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php#L343
• https://www.wordfence.com/threat-intel/vulnerabilities/id/b827f0e1-b8ee-4015-a608-45505f43b324?source=cve

Published

Jun 2, 2026

Last Modified

Jul 22, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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