CVE-2026-110880: Missing Authorization in Kit Kit (formerly ConvertKit)
Description
CVE-2026-110880 is a Missing Authorization vulnerability in Kit (formerly ConvertKit) affecting versions prior to 3.4.7. This flaw allows attackers to exploit incorrectly configured access control security levels, potentially leading to unauthorized access or actions. The vulnerability has a CVSS 3.1 base score of 6.5, indicating a medium severity level. No known exploits are reported in the wild, and the product is not a cloud service. Patch status is not confirmed as no patch or vendor advisory is provided.
CVSS v3.1
Score 6.5medium
Affected software
Kit
Kit (formerly ConvertKit)
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-110880 affects Kit (formerly ConvertKit) versions before 3.4.7. It is characterized as a Missing Authorization issue, where access control security levels are incorrectly configured, allowing unauthorized users to perform actions or access resources they should not. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and low impact on confidentiality and integrity, with no impact on availability.
Potential Impact
Exploitation of this vulnerability could lead to unauthorized access or modification of data within the affected Kit application, potentially compromising confidentiality and integrity. The impact does not extend to availability. There are no known active exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch links are provided, users should monitor vendor communications for updates. Until a patch is available, restricting access to the affected versions and reviewing access control configurations may help reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-10-15T00:19:27.826Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad4ab3b2cdf04f656616386
Added to database: 10/18/2026, 11:19:23 UTC
Last enriched: 10/18/2026, 11:33:42 UTC
Last updated: 10/18/2026, 20:48:08 UTC
Views: 8
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