Quick answers
- Is CVE-2026-88783 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-88783 being exploited in the wild.
- How severe is CVE-2026-88783?
- High severity, with a CVSS score of 8.8, published 3 October 2026.
- Which products and versions are affected?
- Kubio AI Page Builder before 2.9.3.
- Is there a fix for CVE-2026-88783?
- Yes: fixed in 2.9.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-88783 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-88783?
- Check whether you run Kubio AI Page Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 2.9.3
Technical details
Stored cross-site scripting (XSS) via improper HTML filtering in comment submissions. The plugin expands its allowed HTML elements for the editor context but fails to restrict this whitelist when processing content from unauthenticated users, allowing malicious markup to be stored and executed when the page is viewed. Attack vector is network with no privilege requirement; user interaction is required (victim must view the page with the injected payload).
Affected products
- Kubio AI Page Builder before 2.9.3
Timeline
- 2026-10-01: disclosed
- 2026-10-03: patched