CVE-2026-83492: CWE-20 Improper input validation in Extend Themes Kubio AI Website Builder
Description
CVE-2026-83492 is an improper input validation vulnerability in Extend Themes Kubio AI Website Builder affecting versions before 2.9.1. The flaw relates to CWE-20, indicating that the software does not properly validate input data. The vulnerability has a CVSS 4.0 base score of 6.9, categorized as medium severity. No official patch or remediation guidance is currently available, and there are no known exploits in the wild. The product is not a cloud service, so remediation depends on vendor updates. No affected versions were explicitly stated beyond the indication that versions before 2.9.1 are impacted.
CVSS v4.0
Score 6.9medium
Affected software
Extend Themes
Kubio AI Website Builder
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper input validation in the Kubio AI Website Builder by Extend Themes. Improper input validation (CWE-20) can lead to various issues depending on how the input is processed, but specific impact details are not provided. The vulnerability affects versions prior to 2.9.1. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on availability. No official remediation or patch information is currently available from the vendor or advisory sources.
Potential Impact
The vulnerability could allow an attacker to cause high impact on availability due to improper input validation, potentially leading to denial of service or other disruptions. The medium severity score reflects a moderate risk level. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the product is not a cloud service, users should monitor Extend Themes for updates or patches addressing this issue. Until a fix is available, cautious input handling and limiting exposure may help reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- tenable
- Date Reserved
- 2026-08-31T15:42:30.259Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a95a6d2acd9273b494ef9a5
Added to database: 08/31/2026, 16:07:46 UTC
Last enriched: 09/07/2026, 15:38:50 UTC
Last updated: 10/13/2026, 18:48:24 UTC
Views: 71
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