CVE-2026-53738

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-11. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

Copy & Delete Posts through 1.5.4 lets any plugin-enabled non-admin role invoke every operation in the cdp_action_handling AJAX handler. Attackers with an enabled role can delete posts or overwrite plugin settings via the f parameter, bypassing per-function capability checks.

CVSS v3
8.1
EG Score
8.1(high)
EPSS
16.1%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 11, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
No patch confirmed yet.
generic

Copy & Delete Posts through 1.5.4 Privilege Escalation via cdp_action_handling Handler | Advisories | VulnCheck

https://www.vulncheck.com/advisories/copy-delete-posts-through-privilege-escalation-via-cdp-action-handling-handler
generic

Duplicate Post – WordPress plugin | WordPress.org

https://wordpress.org/plugins/copy-delete-posts/

Vendor Advisories for CVE-2026-53738(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 32× in last 7d / 137× 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 137 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53738?
CVE-2026-53738 is a high vulnerability published on June 10, 2026. Copy & Delete Posts through 1.5.4 lets any plugin-enabled non-admin role invoke every operation in the cdpactionhandling AJAX handler. Attackers with an enabled role can delete posts or overwrite plugin settings via the f parameter, bypassing per-function capability checks.
When was CVE-2026-53738 disclosed?
CVE-2026-53738 was first published in the National Vulnerability Database on June 10, 2026, with the most recent update on June 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53738 actively exploited?
CVE-2026-53738 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53738?
CVE-2026-53738 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-53738?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53738, 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.

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