CVE-2026-16296

MEDIUMPre-NVD 4.74.7—
EchelonGraph scoreHIGH confidence

Score 4.7 from GitHub Security Advisory published 2026-08-04. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
4.7
EG Score
4.7(high)
EG Risk
21(Track)
EG Risk 21/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity47% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

August 4, 2026

Last Modified

August 4, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Clearfy < 2.4.3 – Open Redirect via Cyrlitera 404 Handler | CVE 2026-16296 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/265f2edb-1c86-4b87-a59f-d5de5bf21494/

Vendor Advisories for CVE-2026-16296(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 53× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 08:04 UTCEG score recompute
  3. 2026-08-20 08:04 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 06:57 UTCEG score recompute
  6. 2026-08-19 06:57 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-18 05:50 UTCEG score recompute
  9. 2026-08-18 05:50 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 04:43 UTCEG score recompute
  12. 2026-08-17 04:43 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 03:36 UTCEG score recompute
  15. 2026-08-16 03:36 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 02:29 UTCEG score recompute
  18. 2026-08-15 02:29 UTCGHSA enrichment
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-14 01:22 UTCEG score recompute
  21. 2026-08-14 01:22 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 00:15 UTCEG score recompute
  24. 2026-08-13 00:15 UTCGHSA enrichment
  25. 2026-08-12 13:50 UTCEPSS rescore
Show 28 more
  1. 2026-08-11 23:08 UTCEG score recompute
  2. 2026-08-11 23:08 UTCGHSA enrichment
  3. 2026-08-11 13:42 UTCEPSS rescore
  4. 2026-08-11 00:00 UTCEPSS rescore
  5. 2026-08-10 22:01 UTCGHSA enrichment
  6. 2026-08-09 20:54 UTCEG score recompute
  7. 2026-08-09 20:54 UTCGHSA enrichment
  8. 2026-08-09 13:46 UTCEPSS rescore
  9. 2026-08-08 19:47 UTCEG score recompute
  10. 2026-08-08 19:47 UTCGHSA enrichment
  11. 2026-08-08 16:37 UTCEPSS rescore
  12. 2026-08-07 18:40 UTCEG score recompute
  13. 2026-08-07 18:40 UTCGHSA enrichment
  14. 2026-08-06 17:33 UTCEG score recompute
  15. 2026-08-06 17:33 UTCGHSA enrichment
  16. 2026-08-06 13:46 UTCEPSS rescore
  17. 2026-08-05 19:17 UTCEPSS rescore
  18. 2026-08-05 16:26 UTCEG score recompute
  19. 2026-08-05 16:26 UTCGHSA enrichment
  20. 2026-08-04 15:20 UTCEG score recompute
  21. 2026-08-04 15:20 UTCGHSA enrichment
  22. 2026-08-04 15:10 UTCEPSS rescore
  23. 2026-08-04 14:48 UTCEG score recompute▲ 4.70
  24. 2026-08-04 14:48 UTCGHSA enrichment
  25. 2026-08-04 14:47 UTCMITRE cvelistV5CVSS v3 → 4.7 · severity → MEDIUM
  26. 2026-08-04 07:17 UTCNVD update
  27. 2026-08-04 06:35 UTCEG score recompute
  28. 2026-08-04 06:33 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16296?
CVE-2026-16296 is a medium vulnerability published on August 4, 2026. 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…
When was CVE-2026-16296 disclosed?
CVE-2026-16296 was first published in the National Vulnerability Database on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16296 actively exploited?
CVE-2026-16296 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.2% of all scored CVEs.
What is the CVSS score of CVE-2026-16296?
CVE-2026-16296 has a CVSS v3.1 base score of 4.7 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16296?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16296, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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