CVE-2026-8940

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-06-09. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

The WP Meta Sort Posts plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.9. This is due to missing or incorrect nonce validation on the top-level included script in msp-options.php. This makes it possible for unauthenticated attackers to change the plugin's msp_loop_file and msp_nav_location settings via a forged request via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 2026

References (5)

Vendor Advisories for CVE-2026-8940(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 9× in last 7d / 39× 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 181 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-8940?
CVE-2026-8940 is a medium vulnerability published on June 9, 2026. The WP Meta Sort Posts plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.9. This is due to missing or incorrect nonce validation on the top-level included script in msp-options.php. This makes it possible for unauthenticated attackers to change…
When was CVE-2026-8940 disclosed?
CVE-2026-8940 was first published in the National Vulnerability Database on June 9, 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-2026-8940 actively exploited?
CVE-2026-8940 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 97.2% of all scored CVEs.
What is the CVSS score of CVE-2026-8940?
CVE-2026-8940 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-8940?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8940, 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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