CVE-2026-82183

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

OAuth Single Sign On 6.25.0 – 7.0.0 – Unauthenticated Account Takeover via Unverified Steam OpenID Assertion | CVE 2026-82183 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/bc7c18f2-4e8c-47a3-a972-6162fd27aaca/

Vendor Advisories for CVE-2026-82183(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 26× in last 7d / 90× 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. 2026-09-25 07:31 UTCGHSA enrichment
  2. 2026-09-24 18:31 UTCEG score recompute
  3. 2026-09-24 18:31 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 04:26 UTCEG score recompute
  6. 2026-09-24 04:26 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 15:25 UTCGHSA enrichment
  9. 2026-09-23 02:19 UTCEG score recompute
  10. 2026-09-23 02:19 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 13:19 UTCGHSA enrichment
  13. 2026-09-22 00:19 UTCEG score recompute
  14. 2026-09-22 00:19 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 11:18 UTCGHSA enrichment
  17. 2026-09-20 22:19 UTCEG score recompute
  18. 2026-09-20 22:19 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 09:19 UTCGHSA enrichment
  21. 2026-09-19 20:18 UTCEG score recompute
  22. 2026-09-19 20:18 UTCGHSA enrichment
  23. 2026-09-19 07:18 UTCEG score recompute
  24. 2026-09-19 07:18 UTCGHSA enrichment
  25. 2026-09-18 19:28 UTCEPSS rescore
Show 65 more
  1. 2026-09-18 18:18 UTCGHSA enrichment
  2. 2026-09-18 05:03 UTCEG score recompute
  3. 2026-09-18 05:03 UTCGHSA enrichment
  4. 2026-09-17 16:03 UTCGHSA enrichment
  5. 2026-09-17 03:03 UTCEG score recompute
  6. 2026-09-17 03:03 UTCGHSA enrichment
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 14:01 UTCEG score recompute
  9. 2026-09-16 14:01 UTCGHSA enrichment
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-16 00:15 UTCGHSA enrichment
  12. 2026-09-15 11:15 UTCEG score recompute
  13. 2026-09-15 11:15 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 22:15 UTCGHSA enrichment
  17. 2026-09-14 09:15 UTCGHSA enrichment
  18. 2026-09-13 20:15 UTCEG score recompute
  19. 2026-09-13 20:15 UTCGHSA enrichment
  20. 2026-09-13 07:15 UTCGHSA enrichment
  21. 2026-09-12 18:15 UTCEG score recompute
  22. 2026-09-12 18:15 UTCGHSA enrichment
  23. 2026-09-12 05:15 UTCGHSA enrichment
  24. 2026-09-11 16:15 UTCEG score recompute
  25. 2026-09-11 16:15 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 03:15 UTCGHSA enrichment
  29. 2026-09-10 14:15 UTCEG score recompute
  30. 2026-09-10 14:15 UTCGHSA enrichment
  31. 2026-09-10 01:15 UTCGHSA enrichment
  32. 2026-09-09 12:16 UTCGHSA enrichment
  33. 2026-09-08 23:15 UTCEG score recompute
  34. 2026-09-08 23:15 UTCGHSA enrichment
  35. 2026-09-08 22:01 UTCEPSS rescore
  36. 2026-09-08 03:53 UTCEG score recompute
  37. 2026-09-08 03:53 UTCGHSA enrichment
  38. 2026-09-07 14:52 UTCGHSA enrichment
  39. 2026-09-07 00:20 UTCEG score recompute
  40. 2026-09-07 00:20 UTCGHSA enrichment
  41. 2026-09-06 13:48 UTCEPSS rescore
  42. 2026-09-06 11:15 UTCGHSA enrichment
  43. 2026-09-05 22:13 UTCEG score recompute
  44. 2026-09-05 22:12 UTCGHSA enrichment
  45. 2026-09-05 15:31 UTCEPSS rescore
  46. 2026-09-05 09:11 UTCGHSA enrichment
  47. 2026-09-04 20:11 UTCEG score recompute
  48. 2026-09-04 20:10 UTCGHSA enrichment
  49. 2026-09-04 07:07 UTCEG score recompute
  50. 2026-09-04 07:07 UTCGHSA enrichment
  51. 2026-09-04 05:07 UTCEPSS rescore
  52. 2026-09-03 18:04 UTCGHSA enrichment
  53. 2026-09-03 14:44 UTCGHSA enrichment
  54. 2026-09-03 01:40 UTCEG score recompute
  55. 2026-09-03 01:40 UTCGHSA enrichment
  56. 2026-09-02 14:12 UTCEPSS rescore
  57. 2026-09-02 12:35 UTCEG score recompute
  58. 2026-09-02 12:35 UTCGHSA enrichment
  59. 2026-09-02 11:23 UTCGHSA enrichment
  60. 2026-09-02 10:50 UTCEG score recompute▲ 8.10
  61. 2026-09-02 10:50 UTCGHSA enrichment
  62. 2026-09-02 10:48 UTCMITRE cvelistV5CVSS v3 → 8.1 · severity → HIGH
  63. 2026-09-02 06:26 UTCNVD update
  64. 2026-09-02 06:06 UTCEG score recompute
  65. 2026-09-02 06:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82183?
CVE-2026-82183 is a high vulnerability published on September 2, 2026. The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts.
When was CVE-2026-82183 disclosed?
CVE-2026-82183 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82183 actively exploited?
CVE-2026-82183 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 70.4% of all scored CVEs.
What is the CVSS score of CVE-2026-82183?
CVE-2026-82183 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-82183?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82183, 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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