CVE-2026-16296 json
Clearfy < 2.4.3 - Open Redirect via Cyrlitera 404 Handler
published 2026-08-04 3 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-52598
- cvss
- 4.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
The Clearfy Cache WordPress plugin before 2.4.3 does not validate the redirect target in its Cyrlitera old-URL redirect handler, passing a decoded request URI to an unsafe redirect function, which allows unauthenticated attackers to redirect visitors to an arbitrary external URL when a non-default option is enabled.
Patch / fix
- Unknown Clearfy Cache 2.4.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/265f2edb-1c86-4b87-a59f-d5de5bf21494/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N |
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N |
Affected products
- Unknown Clearfy Cache
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
- Technology feeds
References
-
wpscan.com
/vulnerability/265f2edb-1c86-4b87-a59f-d5de5bf21494/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-16296
- NVD CVE-2026-16296
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.