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: 0.3%CVSS: 4.7Exploit: None knownExposed services: Not assessed

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

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
4.7MEDIUMmedium confidence
EG Risk
21
EG Risk 21/100CISA SSVC

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%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
19th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

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 13× in last 7d / 62× 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 155 total refreshes for this CVE.

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

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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 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 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-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?
No fix for CVE-2026-16296 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-16296 are linked in the Vendor Advisories panel on this page.

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