CVE-2026-53738

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM 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
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 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(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

June 10, 2026

Last Modified

July 23, 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 18× in last 7d / 80× 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 149 total refreshes for this CVE.

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

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 July 23, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 83.7% of all scored CVEs.
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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