CVE-2026-75800

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
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: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

The Frontegg SAML SSO WordPress plugin through 1.0.1 does not verify the signature or issuer of SAML authentication responses before establishing a session, allowing unauthenticated attackers to log in as any user, including administrators, as well as to create arbitrary accounts.

CVSS v3
9.8
EG Score
9.8(high)
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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
48%
KEV
Not listed

Published

September 12, 2026

Last Modified

September 14, 2026

Advisory Details (1)

Auto-updated Sep 21, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Frontegg SAML SSO <= 1.0.1 – Unauthenticated Account Takeover via Unverified SAMLResponse | CVE 2026-75800 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/be658aa5-8f7f-4938-bf13-b2e6ed3dcf89/

Vendor Advisories for CVE-2026-75800(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 56× in last 7d / 107× 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 107 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-75800?
CVE-2026-75800 is a critical vulnerability published on September 12, 2026. The Frontegg SAML SSO WordPress plugin through 1.0.1 does not verify the signature or issuer of SAML authentication responses before establishing a session, allowing unauthenticated attackers to log in as any user, including administrators, as well as to create arbitrary accounts.
When was CVE-2026-75800 disclosed?
CVE-2026-75800 was first published in the National Vulnerability Database on September 12, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75800 actively exploited?
CVE-2026-75800 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 52.3% of all scored CVEs.
What is the CVSS score of CVE-2026-75800?
CVE-2026-75800 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-75800?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75800, 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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