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VulnerabilityPublished

CVE-2026-16296: Clearfy Cache (WordPress plugin) · Open Redirect

Affects Clearfy Cache (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 4.7 Medium : upgrade to 2.4.3 when convenient.

Data as of 2 Nov 2026, 22:58 UTC

CVSS 3.1 base score
4.7Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.4.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Aug 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 2 Nov 2026.

What to do

Upgrade Clearfy Cache (WordPress plugin) to 2.4.3.

Affected software

ProductAffectedFixed in
Clearfy CacheAffected
  • <2.4.3
Fixed in
  • 2.4.3

AI-suggested

If you cannot patch yet, administrators should consider disabling the non-default option that enables the vulnerable redirect handler or implement additional validation controls on redirects if possible.

Description

CVE-2026-16296 is an open redirect vulnerability in the Clearfy Cache WordPress plugin versions prior to 2.4.3. The plugin's Cyrlitera old-URL redirect handler does not properly validate redirect targets, allowing unauthenticated attackers to redirect users to arbitrary external URLs when a non-default option is enabled. This vulnerability has a medium severity rating with a CVSS score of 4.7.

References

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