The Kubio AI Page Builder WordPress plugin before 2.9.3 does not limit its widening of the allowed HTML elements to the editor context, so the wider… (CVE-2026-88783)
The Kubio AI Page Builder WordPress plugin versions prior to 2.9.3 improperly apply an expanded set of allowed HTML elements beyond the editor context. This flaw allows unauthenticated users to submit content containing markup that the plugin's script later executes in the browser of any visitor or administrator reviewing unapproved submissions.
AI Analysis
Technical Summary
The vulnerability in Kubio AI Page Builder WordPress plugin before version 2.9.3 arises because the plugin does not restrict its expanded allowance of HTML elements to the editor context only. Instead, this broader set of allowed HTML elements is also applied when filtering content submitted by unauthenticated users. Consequently, attackers can store malicious markup that the plugin's own script executes in the browsers of visitors or administrators reviewing unapproved content, potentially leading to cross-site scripting or similar client-side attacks.
Potential Impact
Unauthenticated users can inject malicious HTML markup that is executed in the browsers of site visitors or administrators reviewing unapproved submissions. This can lead to client-side code execution, which may result in session hijacking, defacement, or other browser-based attacks. The vulnerability affects the confidentiality and integrity of users interacting with the affected WordPress site.
Mitigation Recommendations
A fix is available in Kubio AI Page Builder version 2.9.3. Users should upgrade to version 2.9.3 or later to remediate this vulnerability. No additional mitigation steps are indicated in the provided data.
The Kubio AI Page Builder WordPress plugin before 2.9.3 does not limit its widening of the allowed HTML elements to the editor context, so the wider… (CVE-2026-88783)
Description
The Kubio AI Page Builder WordPress plugin versions prior to 2.9.3 improperly apply an expanded set of allowed HTML elements beyond the editor context. This flaw allows unauthenticated users to submit content containing markup that the plugin's script later executes in the browser of any visitor or administrator reviewing unapproved submissions.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Kubio AI Page Builder WordPress plugin before version 2.9.3 arises because the plugin does not restrict its expanded allowance of HTML elements to the editor context only. Instead, this broader set of allowed HTML elements is also applied when filtering content submitted by unauthenticated users. Consequently, attackers can store malicious markup that the plugin's own script executes in the browsers of visitors or administrators reviewing unapproved content, potentially leading to cross-site scripting or similar client-side attacks.
Potential Impact
Unauthenticated users can inject malicious HTML markup that is executed in the browsers of site visitors or administrators reviewing unapproved submissions. This can lead to client-side code execution, which may result in session hijacking, defacement, or other browser-based attacks. The vulnerability affects the confidentiality and integrity of users interacting with the affected WordPress site.
Mitigation Recommendations
A fix is available in Kubio AI Page Builder version 2.9.3. Users should upgrade to version 2.9.3 or later to remediate this vulnerability. No additional mitigation steps are indicated in the provided data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-w96f-q24m-hc95
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-88783"]
- State
- PUBLISHED
Threat ID: 6ac13990a43b0b3b89d69993
Added to database: 10/03/2026, 17:21:20 UTC
Last enriched: 10/03/2026, 17:33:57 UTC
Last updated: 10/04/2026, 02:46:07 UTC
Views: 3
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