CVE-2026-66620

HIGHPre-NVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-18. a secondary CVSS source baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.2Exploit: None knownExposed: 0

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

Editor PHP Object Injection in OptionTree <= 2.7.3 versions.

CVSS v3
7.2
EG Score
7.2(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity72% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

August 18, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 18, 2026
Patch available.
generic Patch Available

PHP Object Injection in WordPress OptionTree Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/option-tree/vulnerability/wordpress-optiontree-plugin-2-7-3-php-object-injection-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-66620(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 26× in last 7d / 109× 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. 2026-09-21 09:08 UTCGHSA enrichment
  2. 2026-09-20 21:43 UTCEG score recompute
  3. 2026-09-20 21:43 UTCGHSA enrichment
  4. 2026-09-20 20:16 UTCEPSS rescore
  5. 2026-09-20 10:17 UTCGHSA enrichment
  6. 2026-09-19 22:51 UTCEG score recompute
  7. 2026-09-19 22:51 UTCGHSA enrichment
  8. 2026-09-19 10:56 UTCGHSA enrichment
  9. 2026-09-18 21:53 UTCEG score recompute
  10. 2026-09-18 21:53 UTCGHSA enrichment
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 09:26 UTCGHSA enrichment
  13. 2026-09-17 21:52 UTCEG score recompute
  14. 2026-09-17 21:52 UTCGHSA enrichment
  15. 2026-09-17 09:24 UTCGHSA enrichment
  16. 2026-09-16 21:58 UTCEG score recompute
  17. 2026-09-16 21:58 UTCGHSA enrichment
  18. 2026-09-16 14:08 UTCEPSS rescore
  19. 2026-09-16 10:09 UTCEG score recompute
  20. 2026-09-16 10:09 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 21:25 UTCGHSA enrichment
  23. 2026-09-15 09:04 UTCEG score recompute
  24. 2026-09-15 09:04 UTCGHSA enrichment
  25. 2026-09-14 21:38 UTCGHSA enrichment
Show 75 more
  1. 2026-09-14 10:08 UTCGHSA enrichment
  2. 2026-09-13 22:25 UTCEG score recompute
  3. 2026-09-13 22:25 UTCGHSA enrichment
  4. 2026-09-13 11:00 UTCGHSA enrichment
  5. 2026-09-12 23:35 UTCEG score recompute
  6. 2026-09-12 23:35 UTCGHSA enrichment
  7. 2026-09-12 12:09 UTCGHSA enrichment
  8. 2026-09-12 00:42 UTCEG score recompute
  9. 2026-09-12 00:42 UTCGHSA enrichment
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 13:16 UTCEG score recompute
  12. 2026-09-11 13:16 UTCGHSA enrichment
  13. 2026-09-11 09:37 UTCEPSS rescore
  14. 2026-09-11 01:34 UTCGHSA enrichment
  15. 2026-09-10 14:08 UTCEG score recompute
  16. 2026-09-10 14:08 UTCGHSA enrichment
  17. 2026-09-10 02:39 UTCGHSA enrichment
  18. 2026-09-09 15:13 UTCGHSA enrichment
  19. 2026-09-09 03:29 UTCEG score recompute
  20. 2026-09-09 03:29 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-07 21:54 UTCEG score recompute
  23. 2026-09-07 21:54 UTCGHSA enrichment
  24. 2026-09-07 16:01 UTCEPSS rescore
  25. 2026-09-07 10:28 UTCGHSA enrichment
  26. 2026-09-06 21:56 UTCEG score recompute
  27. 2026-09-06 21:56 UTCGHSA enrichment
  28. 2026-09-06 13:47 UTCEPSS rescore
  29. 2026-09-06 10:30 UTCGHSA enrichment
  30. 2026-09-05 23:04 UTCEG score recompute
  31. 2026-09-05 23:04 UTCGHSA enrichment
  32. 2026-09-05 15:31 UTCEPSS rescore
  33. 2026-09-05 11:39 UTCGHSA enrichment
  34. 2026-09-05 00:09 UTCEG score recompute
  35. 2026-09-05 00:09 UTCGHSA enrichment
  36. 2026-09-04 12:00 UTCEG score recompute
  37. 2026-09-04 12:00 UTCGHSA enrichment
  38. 2026-09-04 05:07 UTCEPSS rescore
  39. 2026-09-04 00:34 UTCGHSA enrichment
  40. 2026-09-03 12:11 UTCGHSA enrichment
  41. 2026-09-03 00:43 UTCEG score recompute
  42. 2026-09-03 00:42 UTCGHSA enrichment
  43. 2026-09-02 14:12 UTCEPSS rescore
  44. 2026-09-02 13:17 UTCGHSA enrichment
  45. 2026-09-02 01:46 UTCGHSA enrichment
  46. 2026-09-01 14:19 UTCEG score recompute
  47. 2026-09-01 14:19 UTCGHSA enrichment
  48. 2026-09-01 13:54 UTCEPSS rescore
  49. 2026-09-01 04:40 UTCEPSS rescore
  50. 2026-09-01 02:27 UTCGHSA enrichment
  51. 2026-08-31 15:00 UTCGHSA enrichment
  52. 2026-08-31 02:20 UTCEG score recompute
  53. 2026-08-31 02:20 UTCGHSA enrichment
  54. 2026-08-30 19:17 UTCEPSS rescore
  55. 2026-08-30 14:55 UTCGHSA enrichment
  56. 2026-08-30 03:30 UTCEG score recompute
  57. 2026-08-30 03:30 UTCGHSA enrichment
  58. 2026-08-30 01:22 UTCEPSS rescore
  59. 2026-08-29 16:04 UTCGHSA enrichment
  60. 2026-08-29 04:38 UTCEG score recompute
  61. 2026-08-29 04:37 UTCGHSA enrichment
  62. 2026-08-28 21:42 UTCEPSS rescore
  63. 2026-08-28 06:50 UTCGHSA enrichment
  64. 2026-08-27 19:24 UTCEG score recompute
  65. 2026-08-27 19:24 UTCGHSA enrichment
  66. 2026-08-27 05:42 UTCGHSA enrichment
  67. 2026-08-26 18:14 UTCEG score recompute
  68. 2026-08-26 18:14 UTCGHSA enrichment
  69. 2026-08-26 14:47 UTCEPSS rescore
  70. 2026-08-26 06:10 UTCGHSA enrichment
  71. 2026-08-25 18:45 UTCEG score recompute
  72. 2026-08-25 18:44 UTCGHSA enrichment
  73. 2026-08-25 13:49 UTCEPSS rescore
  74. 2026-08-25 07:19 UTCGHSA enrichment
  75. 2026-08-24 19:53 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-66620?
CVE-2026-66620 is a high vulnerability published on August 18, 2026. Editor PHP Object Injection in OptionTree <= 2.7.3 versions.
When was CVE-2026-66620 disclosed?
CVE-2026-66620 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66620 actively exploited?
CVE-2026-66620 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 69.2% of all scored CVEs.
What is the CVSS score of CVE-2026-66620?
CVE-2026-66620 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-66620?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66620, 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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