CVE-2026-87965

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreHIGH confidence

Score 4.8 from GitHub Security Advisory published 2026-09-18. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: None knownExposed: 0

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

The Easy Appointments WordPress plugin before 4.0.2.2 does not use an unguessable token to authorize its mail-link appointment cancellation and confirmation action, deriving the token from a hardcoded source-embedded salt and the appointment's creation timestamp, so unauthenticated attackers who know or guess that timestamp can cancel or confirm arbitrary appointments.

CVSS v3
4.8
EG Score
4.8(high)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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
Severity48% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

September 18, 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

Easy Appointments < 4.0.2.2 – Unauthenticated Appointment Cancellation/Confirmation via Forgeable Email-Link Token | CVE 2026-87965 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/b498fba8-8969-45af-8cef-e91d6be34912/

Vendor Advisories for CVE-2026-87965(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 20× in last 7d / 26× 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. 2026-09-24 20:34 UTCEG score recompute
  2. 2026-09-24 20:34 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 20:20 UTCEG score recompute
  5. 2026-09-23 20:20 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 20:07 UTCEG score recompute
  8. 2026-09-22 20:07 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-21 21:09 UTCEPSS rescore
  11. 2026-09-21 19:54 UTCEG score recompute
  12. 2026-09-21 19:54 UTCGHSA enrichment
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-20 19:40 UTCGHSA enrichment
  15. 2026-09-19 19:27 UTCEG score recompute
  16. 2026-09-19 19:27 UTCGHSA enrichment
  17. 2026-09-18 19:28 UTCEPSS rescore
  18. 2026-09-18 19:14 UTCEG score recompute
  19. 2026-09-18 19:14 UTCGHSA enrichment
  20. 2026-09-18 12:21 UTCGHSA enrichment
  21. 2026-09-18 11:19 UTCEG score recompute▲ 4.80
  22. 2026-09-18 11:19 UTCGHSA enrichment
  23. 2026-09-18 11:19 UTCMITRE cvelistV5CVSS v3 → 4.8 · severity → MEDIUM
  24. 2026-09-18 06:21 UTCNVD update
  25. 2026-09-18 06:04 UTCEG score recompute
Show 1 more
  1. 2026-09-18 06:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-87965?
CVE-2026-87965 is a medium vulnerability published on September 18, 2026. The Easy Appointments WordPress plugin before 4.0.2.2 does not use an unguessable token to authorize its mail-link appointment cancellation and confirmation action, deriving the token from a hardcoded source-embedded salt and the appointment's creation timestamp, so unauthenticated attackers who…
When was CVE-2026-87965 disclosed?
CVE-2026-87965 was first published in the National Vulnerability Database 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-2026-87965 actively exploited?
CVE-2026-87965 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 82.6% of all scored CVEs.
What is the CVSS score of CVE-2026-87965?
CVE-2026-87965 has a CVSS v3.1 base score of 4.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-87965?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-87965, 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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