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TI-2026-82421 Aliases CVE-2026-27063GHSA-v8mj-3w3m-jr85

Missing authorization in WordPress Kit (formerly ConvertKit) plugin

Priority LOW 29CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

The Kit (formerly ConvertKit) WordPress plugin from 0 through 3.4.7 is affected. Missing authorization checks (CWE-862) let access to restricted functionality go unverified. A remote attacker without any privileges can read limited information from the affected plugin.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

Missing Authorization vulnerability in Kit Kit (formerly ConvertKit) convertkit allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Kit (formerly ConvertKit): from n/a through 3.4.7.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00187 8th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
KitKit (formerly ConvertKit)up to 3.4.7—No fix listedCNA
  • Kit (formerly ConvertKit) VendorKit Affected up to 3.4.7 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Kit (formerly ConvertKit).

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-27063
  2. 2026-10-29 Alias added: GHSA-v8mj-3w3m-jr85
  3. 2026-10-30 CISA SSVC decision points changed

References

Other 1

  • TI-2026-76056 Broken access control in Kit (formerly ConvertKit) WordPress plugin CVSS 3.1MEDIUM 6.5
  • TI-2026-46642 WordPress Kit (formerly ConvertKit) plugin <= 3.3.5 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
  • TI-2026-67739 Missing authorization in Kit (formerly ConvertKit) for WooCommerce CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences