CVE-2026-86707

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-17. 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: 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.

The Private Feed Key WordPress plugin through 0.1 does not verify that the key used to authenticate a feed request is one it issued, matching any stored user metadata value instead, which allows unauthenticated attackers to log in as any user, including administrators.

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
0%
EPSS %ILE
40%
KEV
Not listed

Published

September 17, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 18, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Private Feed Key <= 0.1 – Unauthenticated Authentication Bypass via 'feedkey' Parameter | CVE 2026-86707 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/fbf22345-4e8c-4719-a9c3-5e606b6fd77f/

Vendor Advisories for CVE-2026-86707(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 / 71× 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 09:20 UTCGHSA enrichment
  2. 2026-09-25 05:24 UTCGHSA enrichment
  3. 2026-09-25 01:28 UTCGHSA enrichment
  4. 2026-09-24 21:31 UTCGHSA enrichment
  5. 2026-09-24 17:11 UTCEG score recompute
  6. 2026-09-24 17:11 UTCGHSA enrichment
  7. 2026-09-24 14:04 UTCEPSS rescore
  8. 2026-09-24 13:15 UTCGHSA enrichment
  9. 2026-09-24 09:19 UTCGHSA enrichment
  10. 2026-09-24 05:23 UTCGHSA enrichment
  11. 2026-09-24 01:26 UTCGHSA enrichment
  12. 2026-09-23 21:30 UTCEG score recompute
  13. 2026-09-23 21:30 UTCGHSA enrichment
  14. 2026-09-23 17:54 UTCEPSS rescore
  15. 2026-09-23 17:34 UTCGHSA enrichment
  16. 2026-09-23 13:38 UTCGHSA enrichment
  17. 2026-09-23 09:42 UTCGHSA enrichment
  18. 2026-09-23 05:46 UTCGHSA enrichment
  19. 2026-09-23 01:50 UTCGHSA enrichment
  20. 2026-09-22 21:53 UTCGHSA enrichment
  21. 2026-09-22 17:57 UTCEG score recompute
  22. 2026-09-22 17:57 UTCGHSA enrichment
  23. 2026-09-22 16:01 UTCEPSS rescore
  24. 2026-09-22 14:01 UTCGHSA enrichment
  25. 2026-09-22 10:05 UTCGHSA enrichment
Show 46 more
  1. 2026-09-22 06:09 UTCGHSA enrichment
  2. 2026-09-22 02:13 UTCGHSA enrichment
  3. 2026-09-21 22:15 UTCEG score recompute
  4. 2026-09-21 22:15 UTCGHSA enrichment
  5. 2026-09-21 21:09 UTCEPSS rescore
  6. 2026-09-21 18:19 UTCGHSA enrichment
  7. 2026-09-21 14:23 UTCGHSA enrichment
  8. 2026-09-21 10:24 UTCGHSA enrichment
  9. 2026-09-21 06:28 UTCGHSA enrichment
  10. 2026-09-21 02:31 UTCGHSA enrichment
  11. 2026-09-20 22:34 UTCEG score recompute
  12. 2026-09-20 22:34 UTCGHSA enrichment
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-20 18:38 UTCGHSA enrichment
  15. 2026-09-20 14:42 UTCGHSA enrichment
  16. 2026-09-20 10:40 UTCGHSA enrichment
  17. 2026-09-20 06:44 UTCGHSA enrichment
  18. 2026-09-20 02:44 UTCGHSA enrichment
  19. 2026-09-19 22:48 UTCGHSA enrichment
  20. 2026-09-19 18:52 UTCEG score recompute
  21. 2026-09-19 18:51 UTCGHSA enrichment
  22. 2026-09-19 14:55 UTCGHSA enrichment
  23. 2026-09-19 10:59 UTCGHSA enrichment
  24. 2026-09-19 07:03 UTCGHSA enrichment
  25. 2026-09-19 03:07 UTCGHSA enrichment
  26. 2026-09-18 23:10 UTCEG score recompute
  27. 2026-09-18 23:10 UTCGHSA enrichment
  28. 2026-09-18 19:28 UTCEPSS rescore
  29. 2026-09-18 19:14 UTCGHSA enrichment
  30. 2026-09-18 17:55 UTCGHSA enrichment
  31. 2026-09-18 13:59 UTCGHSA enrichment
  32. 2026-09-18 10:03 UTCGHSA enrichment
  33. 2026-09-18 06:07 UTCGHSA enrichment
  34. 2026-09-18 02:11 UTCGHSA enrichment
  35. 2026-09-17 22:15 UTCEG score recompute
  36. 2026-09-17 22:15 UTCGHSA enrichment
  37. 2026-09-17 19:32 UTCEPSS rescore
  38. 2026-09-17 18:18 UTCEG score recompute
  39. 2026-09-17 18:18 UTCGHSA enrichment
  40. 2026-09-17 13:22 UTCGHSA enrichment
  41. 2026-09-17 12:38 UTCEG score recompute▲ 9.80
  42. 2026-09-17 12:38 UTCGHSA enrichment
  43. 2026-09-17 12:34 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  44. 2026-09-17 06:23 UTCNVD update
  45. 2026-09-17 06:04 UTCEG score recompute
  46. 2026-09-17 06:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86707?
CVE-2026-86707 is a critical vulnerability published on September 17, 2026. The Private Feed Key WordPress plugin through 0.1 does not verify that the key used to authenticate a feed request is one it issued, matching any stored user metadata value instead, which allows unauthenticated attackers to log in as any user, including administrators.
When was CVE-2026-86707 disclosed?
CVE-2026-86707 was first published in the National Vulnerability Database on September 17, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86707 actively exploited?
CVE-2026-86707 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 59.9% of all scored CVEs.
What is the CVSS score of CVE-2026-86707?
CVE-2026-86707 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-86707?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86707, 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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