CVE-2026-16297

MEDIUMPre-NVD 4.14.1—
EchelonGraph scoreMEDIUM confidence

Score 4.1 from GitHub Security Advisory published 2026-08-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
4.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.1Exploit: 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 restrict the classes allowed when unserializing settings-import data, allowing users with administrator access to perform PHP Object Injection attacks, which may lead to remote code execution when a suitable gadget chain is present in the environment.

CVSS v3
4.1
EG Score
4.1(medium)
EG Risk
23(Track)
EG Risk 23/100SSVC: 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
Severity41% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 3, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Clearfy < 2.4.3 – Admin+ PHP Object Injection via Settings Import | CVE 2026-16297 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/3daf62cd-eefe-49ec-89f7-b13f88111853/

Vendor Advisories for CVE-2026-16297(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 / 71× 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 126 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16297?
CVE-2026-16297 is a medium vulnerability published on August 3, 2026. The Clearfy Cache WordPress plugin before 2.4.3 does not restrict the classes allowed when unserializing settings-import data, allowing users with administrator access to perform PHP Object Injection attacks, which may lead to remote code execution when a suitable gadget chain is present in the…
When was CVE-2026-16297 disclosed?
CVE-2026-16297 was first published in the National Vulnerability Database on August 3, 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-2026-16297 actively exploited?
CVE-2026-16297 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 86.8% of all scored CVEs.
What is the CVSS score of CVE-2026-16297?
CVE-2026-16297 has a CVSS v3.1 base score of 4.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-16297?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16297, 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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