CVE-2026-92421

MEDIUMPre-NVD 4.74.7—
EchelonGraph scoreHIGH confidence

Score 4.7 from GitHub Security Advisory published 2026-09-19. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 0

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

The Hydra Booking — Appointment Scheduling & Booking Calendar WordPress plugin before 1.2.3 does not verify that the host record being modified belongs to the user making the request, allowing authenticated users holding a Hydra Booking — Appointment Scheduling & Booking Calendar WordPress plugin before 1.2.3-assigned host role to modify other hosts' profile data and reassign ownership of another host's record to themselves.

CVSS v3
4.7
EG Score
4.7(high)
EG Risk
21(Track)
EG Risk 21/100SSVC: 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
Severity47% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

September 19, 2026

Last Modified

September 19, 2026

Advisory Details (1)

Auto-updated Sep 19, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Hydra Booking 1.1.0 – < 1.2.3 – Hydra Host+ Host Profile Takeover via IDOR | CVE 2026-92421 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/3ba305b9-5f3b-47eb-a5d7-ddbeeeefd0a4/

Vendor Advisories for CVE-2026-92421(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 10× in last 7d / 10× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 13:30 UTCEG score recompute
  3. 2026-09-20 13:30 UTCGHSA enrichment
  4. 2026-09-19 14:27 UTCGHSA enrichment
  5. 2026-09-19 13:25 UTCEG score recompute▲ 4.70
  6. 2026-09-19 13:25 UTCGHSA enrichment
  7. 2026-09-19 13:24 UTCMITRE cvelistV5CVSS v3 → 4.7 · severity → MEDIUM
  8. 2026-09-19 07:17 UTCNVD update
  9. 2026-09-19 06:26 UTCEG score recompute
  10. 2026-09-19 06:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-92421?
CVE-2026-92421 is a medium vulnerability published on September 19, 2026. The Hydra Booking — Appointment Scheduling & Booking Calendar WordPress plugin before 1.2.3 does not verify that the host record being modified belongs to the user making the request, allowing authenticated users holding a Hydra Booking — Appointment Scheduling & Booking Calendar WordPress plugin…
When was CVE-2026-92421 disclosed?
CVE-2026-92421 was first published in the National Vulnerability Database on September 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-92421 actively exploited?
CVE-2026-92421 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 93.2% of all scored CVEs.
What is the CVSS score of CVE-2026-92421?
CVE-2026-92421 has a CVSS v3.1 base score of 4.7 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-92421?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-92421, 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

Explore the affected products and dependency analysis for CVE-2026-92421

Explore →

Is Your Infrastructure Affected by CVE-2026-92421?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs