CVE-2026-15939

LOWPre-NVD 2.72.7—
EchelonGraph scoreMEDIUM confidence

Score 2.7 from GitHub Security Advisory (severity: LOW) published 2026-08-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 2.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
2.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 2.7Exploit: Elevated riskExposed services: Not assessed

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

The Simple Restrict WordPress plugin before 1.2.9 does not enforce its content-restriction permission check on the REST API the way it does on the front end, relying there on a generic capability check instead of the Simple Restrict WordPress plugin before 1.2.9's own permission system, allowing users with contributor-level access or above to read the content of restricted posts and pages they were never granted access to.

CVSS v3
2.7
EG Score
2.7LOWmedium confidence
EG Risk
28
EG Risk 28/100CISA SSVC

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
Severity27% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 2, 2026

Last Modified

August 26, 2026

References (1)

Vendor Advisories for CVE-2026-15939(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.

  1. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 06:24 UTCEG score recompute
  3. 2026-10-04 06:24 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-01 19:49 UTCEPSS rescore
  6. 2026-10-01 02:41 UTCEG score recompute
  7. 2026-10-01 02:41 UTCGHSA enrichment
  8. 2026-09-30 15:02 UTCEPSS rescore
  9. 2026-09-29 15:20 UTCEPSS rescore
  10. 2026-09-28 13:51 UTCEPSS rescore
  11. 2026-09-28 02:52 UTCEG score recompute
  12. 2026-09-28 02:52 UTCGHSA enrichment
  13. 2026-09-27 13:47 UTCEPSS rescore
  14. 2026-09-26 15:58 UTCEPSS rescore
  15. 2026-09-25 04:49 UTCEG score recompute
  16. 2026-09-25 04:49 UTCGHSA enrichment
  17. 2026-09-22 06:53 UTCEG score recompute
  18. 2026-09-22 06:53 UTCGHSA enrichment
  19. 2026-09-19 03:56 UTCEG score recompute
  20. 2026-09-19 03:55 UTCGHSA enrichment
  21. 2026-09-18 19:27 UTCEPSS rescore
  22. 2026-09-16 14:07 UTCEPSS rescore
  23. 2026-09-16 06:11 UTCEG score recompute
  24. 2026-09-16 06:11 UTCGHSA enrichment
  25. 2026-09-16 05:14 UTCEPSS rescore
Show 75 more
  1. 2026-09-13 16:46 UTCEPSS rescore
  2. 2026-09-13 10:27 UTCEG score recompute
  3. 2026-09-13 10:27 UTCGHSA enrichment
  4. 2026-09-12 15:00 UTCEPSS rescore
  5. 2026-09-11 14:52 UTCEPSS rescore
  6. 2026-09-11 09:36 UTCEPSS rescore
  7. 2026-09-10 14:49 UTCEG score recompute
  8. 2026-09-10 14:49 UTCGHSA enrichment
  9. 2026-09-10 09:34 UTCEPSS rescore
  10. 2026-09-08 22:00 UTCEPSS rescore
  11. 2026-09-07 19:11 UTCEG score recompute
  12. 2026-09-07 19:11 UTCGHSA enrichment
  13. 2026-09-07 16:01 UTCEPSS rescore
  14. 2026-09-06 13:47 UTCEPSS rescore
  15. 2026-09-04 18:03 UTCEG score recompute
  16. 2026-09-04 18:02 UTCGHSA enrichment
  17. 2026-09-04 05:06 UTCEPSS rescore
  18. 2026-09-02 14:11 UTCEPSS rescore
  19. 2026-09-01 22:23 UTCEG score recompute
  20. 2026-09-01 22:23 UTCGHSA enrichment
  21. 2026-09-01 13:53 UTCEPSS rescore
  22. 2026-08-30 19:17 UTCEPSS rescore
  23. 2026-08-30 01:22 UTCEPSS rescore
  24. 2026-08-29 22:11 UTCEG score recompute
  25. 2026-08-29 22:11 UTCGHSA enrichment
  26. 2026-08-28 21:41 UTCEPSS rescore
  27. 2026-08-27 14:25 UTCEPSS rescore
  28. 2026-08-26 17:41 UTCEG score recompute
  29. 2026-08-26 17:41 UTCGHSA enrichment
  30. 2026-08-26 14:46 UTCEPSS rescore
  31. 2026-08-25 13:48 UTCEPSS rescore
  32. 2026-08-25 10:59 UTCEG score recompute
  33. 2026-08-25 10:59 UTCGHSA enrichment
  34. 2026-08-23 00:19 UTCEPSS rescore
  35. 2026-08-22 15:20 UTCEG score recompute
  36. 2026-08-22 15:20 UTCGHSA enrichment
  37. 2026-08-21 23:49 UTCEPSS rescore
  38. 2026-08-20 22:55 UTCEPSS rescore
  39. 2026-08-19 19:41 UTCEG score recompute
  40. 2026-08-19 19:41 UTCGHSA enrichment
  41. 2026-08-19 17:03 UTCEPSS rescore
  42. 2026-08-18 13:48 UTCEPSS rescore
  43. 2026-08-17 13:47 UTCEPSS rescore
  44. 2026-08-17 00:03 UTCEG score recompute
  45. 2026-08-17 00:03 UTCGHSA enrichment
  46. 2026-08-16 14:56 UTCEPSS rescore
  47. 2026-08-16 02:14 UTCEPSS rescore
  48. 2026-08-15 01:30 UTCEPSS rescore
  49. 2026-08-14 04:25 UTCEG score recompute
  50. 2026-08-14 04:25 UTCGHSA enrichment
  51. 2026-08-13 22:00 UTCEPSS rescore
  52. 2026-08-12 13:50 UTCEPSS rescore
  53. 2026-08-11 13:42 UTCEPSS rescore
  54. 2026-08-11 08:47 UTCEG score recompute
  55. 2026-08-11 08:47 UTCGHSA enrichment
  56. 2026-08-11 00:00 UTCEPSS rescore
  57. 2026-08-09 13:46 UTCEPSS rescore
  58. 2026-08-08 13:09 UTCEG score recompute
  59. 2026-08-08 13:09 UTCGHSA enrichment
  60. 2026-08-06 13:46 UTCEPSS rescore
  61. 2026-08-05 19:17 UTCEPSS rescore
  62. 2026-08-05 17:30 UTCEG score recompute
  63. 2026-08-05 17:30 UTCGHSA enrichment
  64. 2026-08-05 16:52 UTCEG score recompute▲ 2.70
  65. 2026-08-05 16:52 UTCGHSA enrichment
  66. 2026-08-05 16:50 UTCMITRE cvelistV5CVSS v3 → 2.7 · severity → LOW
  67. 2026-08-05 02:17 UTCEG score recompute
  68. 2026-08-05 02:17 UTCGHSA enrichment
  69. 2026-08-04 15:10 UTCEPSS rescore
  70. 2026-08-04 10:38 UTCEPSS rescore
  71. 2026-08-03 10:35 UTCEPSS rescore
  72. 2026-08-02 06:36 UTCGHSA enrichment
  73. 2026-08-02 06:35 UTCNVD update
  74. 2026-08-02 06:07 UTCEG score recompute
  75. 2026-08-02 06:04 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-15939?
CVE-2026-15939 is a low vulnerability published on August 2, 2026. The Simple Restrict WordPress plugin before 1.2.9 does not enforce its content-restriction permission check on the REST API the way it does on the front end, relying there on a generic capability check instead of the Simple Restrict WordPress plugin before 1.2.9's own permission system, allowing…
When was CVE-2026-15939 disclosed?
CVE-2026-15939 was first published on August 2, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15939 actively exploited?
CVE-2026-15939 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15939?
CVE-2026-15939 has a CVSS v3.1 base score of 2.7 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-15939?
No fix for CVE-2026-15939 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-15939 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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