CVE-2026-6391

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2026-05-20. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

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

The Sentence To SEO (keywords, description and tags) plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing or incorrect nonce validation on the create_admin_page() function. This makes it possible for unauthenticated attackers to inject malicious web scripts and update plugin settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

May 20, 2026

Last Modified

July 24, 2026

References (9)

Vendor Advisories for CVE-2026-6391(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 4× in last 7d / 50× 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 189 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-6391?
CVE-2026-6391 is a medium vulnerability published on May 20, 2026. The Sentence To SEO (keywords, description and tags) plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing or incorrect nonce validation on the createadminpage() function. This makes it possible for unauthenticated…
When was CVE-2026-6391 disclosed?
CVE-2026-6391 was first published in the National Vulnerability Database on May 20, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6391 actively exploited?
CVE-2026-6391 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 93.1% of all scored CVEs.
What is the CVSS score of CVE-2026-6391?
CVE-2026-6391 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-6391?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6391, 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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