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.
CVE-2026-4912
MEDIUMPre-NVD 4.14.1—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 4.1 from GitHub Security Advisory published 2026-07-28. a secondary CVSS source baseline 4.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
4.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.1Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.1
- EG Score
- 4.1(high)
- EG Risk
- 18(Track)EG Risk 18/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity41% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 15%
- KEV
- Not listed
Published
July 28, 2026
Last Modified
July 28, 2026
References (5)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/media-cleaner/tags/7.0.3/classes/core.php#L565
- security@wordfencehttps://plugins.trac.wordpress.org/browser/media-cleaner/tags/7.0.3/classes/core.php#L570
- security@wordfencehttps://plugins.trac.wordpress.org/browser/media-cleaner/tags/7.0.3/classes/rest.php#L118
- security@wordfencehttps://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=
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/e9c9214d-45d4-4477-8244-7802a4901114?source=cve
Vendor Advisories for CVE-2026-4912(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-29 22:35 UTCEG score recompute
- 2026-07-29 22:35 UTCGHSA enrichment
- 2026-07-28 20:26 UTCEG score recompute
- 2026-07-28 20:06 UTCEG score recompute
- 2026-07-28 19:26 UTCEG score recompute
- 2026-07-28 18:59 UTCEG score recompute
- 2026-07-28 18:57 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-918
- CVE-2016-10927EG 10.0CRITICAL
- CVE-2016-10926EG 10.0CRITICAL
- CVE-2018-10511EG 10.0CRITICAL
- CVE-2018-1000124EG 10.0CRITICAL
- CVE-2017-11291EG 10.0EPSS p92CRITICAL
- CVE-2017-12905EG 10.0CRITICAL
- CVE-2017-8794EG 10.0CRITICAL
- CVE-2017-13667EG 9.9CRITICAL
- CVE-2017-17674EG 9.8CRITICAL
- CVE-2013-4864EG 9.8EPSS p93CRITICAL
Frequently asked(5)
What is CVE-2026-4912?
CVE-2026-4912 is a medium vulnerability published on July 28, 2026. 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 geturlsfrom_html() function using DOMDocument::loadHTMLFile() to fetch iframe source URLs with an insufficient hostname…
When was CVE-2026-4912 disclosed?
CVE-2026-4912 was first published in the National Vulnerability Database on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4912 actively exploited?
CVE-2026-4912 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 84.7% of all scored CVEs.
What is the CVSS score of CVE-2026-4912?
CVE-2026-4912 has a CVSS v3 base score of 4.1 (NVD).
How do I remediate CVE-2026-4912?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4912, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-4912
Is Your Infrastructure Affected by CVE-2026-4912?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.