CVE-2026-28008

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Unauthenticated Broken Authentication in OAuth Single Sign On – SSO (OAuth Client) <= 7.0.0 versions.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 14, 2026

Advisory Details (1)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

Broken Authentication in WordPress OAuth Single Sign On – SSO (OAuth Client) Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/miniorange-login-with-eve-online-google-facebook/vulnerability/wordpress-oauth-single-sign-on-sso-oauth-client-plugin-7-0-0-broken-authentication-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-28008(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 49× in last 7d / 207× 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 267 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-28008?
CVE-2026-28008 is a critical vulnerability published on August 13, 2026. Unauthenticated Broken Authentication in OAuth Single Sign On – SSO (OAuth Client) <= 7.0.0 versions.
When was CVE-2026-28008 disclosed?
CVE-2026-28008 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-28008 actively exploited?
CVE-2026-28008 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 65.6% of all scored CVEs.
What is the CVSS score of CVE-2026-28008?
CVE-2026-28008 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-28008?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-28008, 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.

Dependency Blast Radius

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