CVE-2026-88782: CWE-79 Cross-Site Scripting (XSS) in Kubio AI Page Builder
The Kubio AI Page Builder WordPress plugin before 2.9.3 does not validate the URI scheme of a user-supplied value before outputting it as a link target, allowing users with the contributor role and above to store a payload which executes in the browser of anyone who follows the link, including an administrator previewing the unpublished submission.
AI Analysis
Technical Summary
CVE-2026-88782 is a stored Cross-Site Scripting (CWE-79) vulnerability in the Kubio AI Page Builder WordPress plugin prior to version 2.9.3. The flaw arises because the plugin does not validate the URI scheme of user-supplied input before rendering it as a link target. This improper validation enables users with contributor privileges or above to inject payloads that execute in the browser context of any user who clicks the link, including administrators previewing unpublished submissions.
Potential Impact
An attacker with contributor or higher privileges can inject malicious scripts that execute in the browsers of users who follow the crafted links. This can lead to session hijacking, privilege escalation, or other attacks within the context of the affected site. The vulnerability specifically affects administrators previewing unpublished submissions, increasing the risk of administrative compromise.
Mitigation Recommendations
Upgrade the Kubio AI Page Builder plugin to version 2.9.3 or later, where this vulnerability has been fixed. No other mitigation guidance is provided, and patch status is confirmed by the version range indicating the fix in 2.9.3.
CVE-2026-88782: CWE-79 Cross-Site Scripting (XSS) in Kubio AI Page Builder
Description
The Kubio AI Page Builder WordPress plugin before 2.9.3 does not validate the URI scheme of a user-supplied value before outputting it as a link target, allowing users with the contributor role and above to store a payload which executes in the browser of anyone who follows the link, including an administrator previewing the unpublished submission.
CVSS v3.1
Score 6.8medium
Affected software
Kubio AI Page Builder
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-88782 is a stored Cross-Site Scripting (CWE-79) vulnerability in the Kubio AI Page Builder WordPress plugin prior to version 2.9.3. The flaw arises because the plugin does not validate the URI scheme of user-supplied input before rendering it as a link target. This improper validation enables users with contributor privileges or above to inject payloads that execute in the browser context of any user who clicks the link, including administrators previewing unpublished submissions.
Potential Impact
An attacker with contributor or higher privileges can inject malicious scripts that execute in the browsers of users who follow the crafted links. This can lead to session hijacking, privilege escalation, or other attacks within the context of the affected site. The vulnerability specifically affects administrators previewing unpublished submissions, increasing the risk of administrative compromise.
Mitigation Recommendations
Upgrade the Kubio AI Page Builder plugin to version 2.9.3 or later, where this vulnerability has been fixed. No other mitigation guidance is provided, and patch status is confirmed by the version range indicating the fix in 2.9.3.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-10T07:42:36.477Z
- State
- PUBLISHED
Threat ID: 6ac11723a43b0b3b89cacf6b
Added to database: 10/03/2026, 14:54:27 UTC
Last enriched: 10/03/2026, 14:56:42 UTC
Last updated: 10/04/2026, 05:45:56 UTC
Views: 12
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.