CVE-2026-3620: Word Replacer (WordPress plugin) · Improper Input Validation
Affects Word Replacer (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 4.4 Medium.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 2 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| takienWord Replacer | Affected
| Fixed in– |
AI-suggested
Until an official fix is released, restrict Administrator-level access to trusted users only and consider disabling or removing the Word Replacer plugin if possible. Monitor for updates from the vendor or plugin maintainers regarding patches or mitigations.
Description
The Word Replacer plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in the 'replacement' parameter in all versions up to and including 0.4. This vulnerability arises from improper input validation and insufficient output escaping, allowing authenticated administrators to inject malicious scripts that execute when users view the affected pages. The vulnerability has a medium severity score of 4.4 and requires high privileges to exploit.
References
- wordfence.com/threat-intel/vulnerabilities/id/b827f0e1-b8ee-4015-a608-45505f43b324?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/word-replacer/trunk/word-replacer.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/word-replacer/tags/0.4/word-replacer.php (opens in a new tab)