CVE-2026-3620

MEDIUM

Word Replacer <= 0.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Replacement' Parameter

Title source: cna

Description

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.

References (9)

Core 9

Core References

https://www.wordfence.com/threat-intel/vulnerabilities/id/b827f0e1-b8ee-4015-a608-45505f43b324?source=cve

https://plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php#L339

https://plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php#L339

https://plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php#L343

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/tags/0.4/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/tags/0.4/word-replacer.php#L230

Scores

CVSS v3 4.4

EPSS 0.0025

EPSS Percentile 16.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-20

Status published

Products (1)

takien/Word Replacer < 0.4

Published Jun 02, 2026

Tracked Since Jun 02, 2026