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VulnerabilityPublished

CVE-2026-3620: Word Replacer (WordPress plugin) · Improper Input Validation

Affects Word Replacer (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 4.4 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
4.4Medium
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
takienWord ReplacerAffected
  • <=0.4
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

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