SSRF (Server-Side Request Forgery) in Media Cleaner: Clean your WordPress! (WordPress plugin) (CVE-2026-4912)
Summary
SSRF in Media Cleaner: Clean your WordPress! (WordPress plugin) (CVE-2026-4912). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-4912 has been found in Media Cleaner: Clean your WordPress! (WordPress plugin).
Risk of unauthorized operations or information disclosure. CVSS score: 4.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Media Cleaner: Clean your WordPress! (WordPress plugin) CVE-2026-4912" on the vendor's site.
CVE-2026-4912 (Media Cleaner: Clean your WordPress! (WordPress plugin)) — CWE-918 / CVSS v3 4.1
Attack vector: remote (network-reachable) / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
SSRF (CWE-918) exists in Media Cleaner: Clean your WordPress! (WordPress plugin).
Check the vendor advisory for the affected versions of Media Cleaner: Clean your WordPress! (WordPress plugin).
Severity: Medium (CVSS 4.1/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Media Cleaner: Clean your WordPress! (WordPress plugin) を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- web security@wordfence.com
- web security@wordfence.com
- web security@wordfence.com
- web security@wordfence.com
- web security@wordfence.com
- web nvd.nist.gov
- web github.com