CVE-2026-65577

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-06. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Unauthenticated PHP Object Injection in Advice <= 1.18.0 versions.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 19, 2026
Patch available.
generic Patch Available

PHP Object Injection in WordPress Advice Theme - Patchstack

https://patchstack.com/database/wordpress/theme/advice/vulnerability/wordpress-advice-theme-1-18-0-php-object-injection-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-65577(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 53× in last 7d / 115× 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 115 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-65577?
CVE-2026-65577 is a critical vulnerability published on August 6, 2026. Unauthenticated PHP Object Injection in Advice <= 1.18.0 versions.
When was CVE-2026-65577 disclosed?
CVE-2026-65577 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65577 actively exploited?
CVE-2026-65577 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 75.8% of all scored CVEs.
What is the CVSS score of CVE-2026-65577?
CVE-2026-65577 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-65577?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65577, 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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