CVE-2026-27409

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-07-01. the CNA's CVSS baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:github_m, epss, ghsa
Trending — 3 sources updated this week
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

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

Missing Authorization vulnerability in Webba Plugins Webba Booking allows Exploiting Incorrectly...

Missing Authorization vulnerability in Webba Plugins Webba Booking allows Exploiting Incorrectly Configured Access Control Security Levels.

This issue affects Webba Booking: from n/a through 6.4.13.

CVSS v3
5.3
EG Score
5.3(high)
EPSS
10.0%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 1, 2026

Vendor Advisories for CVE-2026-27409(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 19× in last 7d / 19× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 13:39 UTCEG score recompute
  4. 2026-07-06 13:39 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 14:43 UTCEG score recompute
  8. 2026-07-05 14:43 UTCGHSA enrichment
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-04 15:48 UTCEG score recompute
  11. 2026-07-04 15:48 UTCGHSA enrichment
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-03 16:53 UTCEG score recompute
  15. 2026-07-03 16:53 UTCGHSA enrichment
  16. 2026-07-02 17:59 UTCEG score recompute
  17. 2026-07-02 17:58 UTCGHSA enrichment
  18. 2026-07-01 19:04 UTCEG score recompute
  19. 2026-07-01 19:04 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-27409?
CVE-2026-27409 is a medium vulnerability published on July 1, 2026. Missing Authorization vulnerability in Webba Plugins Webba Booking allows Exploiting Incorrectly... Missing Authorization vulnerability in Webba Plugins Webba Booking allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Webba Booking: from n/a through 6.4.13.
When was CVE-2026-27409 disclosed?
CVE-2026-27409 was first published in the National Vulnerability Database on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27409 actively exploited?
CVE-2026-27409 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-27409?
CVE-2026-27409 has a CVSS v4.0 base score of 5.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-27409?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27409, 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-2026-27409

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