CVE-2026-16296

MEDIUMPre-NVD 4.74.7—
EchelonGraph scoreMEDIUM 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(medium)
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
9%
KEV
Not listed

Published

August 4, 2026

Last Modified

August 26, 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 15× in last 7d / 74× 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.

Showing the most recent 100 of 129 total refreshes for this CVE.

  1. 2026-09-20 05:17 UTCEG score recompute
  2. 2026-09-20 05:17 UTCGHSA enrichment
  3. 2026-09-19 03:41 UTCEG score recompute
  4. 2026-09-19 03:41 UTCGHSA enrichment
  5. 2026-09-18 19:27 UTCEPSS rescore
  6. 2026-09-18 02:22 UTCEG score recompute
  7. 2026-09-18 02:22 UTCGHSA enrichment
  8. 2026-09-17 01:12 UTCEG score recompute
  9. 2026-09-17 01:12 UTCGHSA enrichment
  10. 2026-09-16 14:07 UTCEPSS rescore
  11. 2026-09-16 05:14 UTCEPSS rescore
  12. 2026-09-15 16:51 UTCEG score recompute
  13. 2026-09-15 16:50 UTCGHSA enrichment
  14. 2026-09-14 12:17 UTCEG score recompute
  15. 2026-09-14 12:17 UTCGHSA enrichment
  16. 2026-09-13 16:46 UTCEPSS rescore
  17. 2026-09-13 11:10 UTCEG score recompute
  18. 2026-09-13 11:10 UTCGHSA enrichment
  19. 2026-09-12 15:00 UTCEPSS rescore
  20. 2026-09-12 10:03 UTCEG score recompute
  21. 2026-09-12 10:03 UTCGHSA enrichment
  22. 2026-09-11 14:52 UTCEPSS rescore
  23. 2026-09-11 09:36 UTCEPSS rescore
  24. 2026-09-11 08:55 UTCEG score recompute
  25. 2026-09-11 08:55 UTCGHSA enrichment
Show 75 more
  1. 2026-09-10 09:34 UTCEPSS rescore
  2. 2026-09-10 07:48 UTCGHSA enrichment
  3. 2026-09-09 06:40 UTCEG score recompute
  4. 2026-09-09 06:40 UTCGHSA enrichment
  5. 2026-09-08 22:00 UTCEPSS rescore
  6. 2026-09-07 18:41 UTCEG score recompute
  7. 2026-09-07 18:41 UTCGHSA enrichment
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-06 12:31 UTCEG score recompute
  11. 2026-09-06 12:30 UTCGHSA enrichment
  12. 2026-09-05 11:23 UTCEG score recompute
  13. 2026-09-05 11:23 UTCGHSA enrichment
  14. 2026-09-04 10:13 UTCEG score recompute
  15. 2026-09-04 10:13 UTCGHSA enrichment
  16. 2026-09-04 05:06 UTCEPSS rescore
  17. 2026-09-03 08:54 UTCEG score recompute
  18. 2026-09-03 08:54 UTCGHSA enrichment
  19. 2026-09-02 14:11 UTCEPSS rescore
  20. 2026-09-02 07:47 UTCEG score recompute
  21. 2026-09-02 07:47 UTCGHSA enrichment
  22. 2026-09-01 13:53 UTCEPSS rescore
  23. 2026-09-01 04:39 UTCEPSS rescore
  24. 2026-09-01 00:31 UTCGHSA enrichment
  25. 2026-08-30 22:58 UTCEG score recompute
  26. 2026-08-30 22:58 UTCGHSA enrichment
  27. 2026-08-30 19:17 UTCEPSS rescore
  28. 2026-08-30 01:22 UTCEPSS rescore
  29. 2026-08-29 21:51 UTCEG score recompute
  30. 2026-08-29 21:51 UTCGHSA enrichment
  31. 2026-08-28 21:41 UTCEPSS rescore
  32. 2026-08-27 19:58 UTCEG score recompute
  33. 2026-08-27 19:58 UTCGHSA enrichment
  34. 2026-08-27 14:25 UTCEPSS rescore
  35. 2026-08-26 17:39 UTCGHSA enrichment
  36. 2026-08-26 14:51 UTCEG score recompute
  37. 2026-08-26 14:51 UTCGHSA enrichment
  38. 2026-08-26 14:46 UTCEPSS rescore
  39. 2026-08-25 13:48 UTCEPSS rescore
  40. 2026-08-25 13:43 UTCEG score recompute
  41. 2026-08-25 13:43 UTCGHSA enrichment
  42. 2026-08-24 12:35 UTCEG score recompute
  43. 2026-08-24 12:35 UTCGHSA enrichment
  44. 2026-08-23 11:27 UTCEG score recompute
  45. 2026-08-23 11:27 UTCGHSA enrichment
  46. 2026-08-23 00:19 UTCEPSS rescore
  47. 2026-08-22 10:19 UTCEG score recompute
  48. 2026-08-22 10:19 UTCGHSA enrichment
  49. 2026-08-21 23:49 UTCEPSS rescore
  50. 2026-08-21 09:12 UTCEG score recompute
  51. 2026-08-21 09:12 UTCGHSA enrichment
  52. 2026-08-20 22:55 UTCEPSS rescore
  53. 2026-08-20 08:04 UTCEG score recompute
  54. 2026-08-20 08:04 UTCGHSA enrichment
  55. 2026-08-19 17:03 UTCEPSS rescore
  56. 2026-08-19 06:57 UTCEG score recompute
  57. 2026-08-19 06:57 UTCGHSA enrichment
  58. 2026-08-18 13:48 UTCEPSS rescore
  59. 2026-08-18 05:50 UTCEG score recompute
  60. 2026-08-18 05:50 UTCGHSA enrichment
  61. 2026-08-17 13:47 UTCEPSS rescore
  62. 2026-08-17 04:43 UTCEG score recompute
  63. 2026-08-17 04:43 UTCGHSA enrichment
  64. 2026-08-16 14:56 UTCEPSS rescore
  65. 2026-08-16 03:36 UTCEG score recompute
  66. 2026-08-16 03:36 UTCGHSA enrichment
  67. 2026-08-16 02:14 UTCEPSS rescore
  68. 2026-08-15 02:29 UTCEG score recompute
  69. 2026-08-15 02:29 UTCGHSA enrichment
  70. 2026-08-15 01:30 UTCEPSS rescore
  71. 2026-08-14 01:22 UTCEG score recompute
  72. 2026-08-14 01:22 UTCGHSA enrichment
  73. 2026-08-13 22:00 UTCEPSS rescore
  74. 2026-08-13 00:15 UTCEG score recompute
  75. 2026-08-13 00:15 UTCGHSA enrichment

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, with the most recent update on August 26, 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 91.4% 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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