The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the embed_form_action() function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit.
CVE-2026-3601
Score 4.3 from GitHub Security Advisory published 2026-05-05. NVD baseline CVSS 4.3; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: 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 computedSeverity43% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 22%
- KEV
- Not listed
Published
May 5, 2026
Last Modified
May 5, 2026
References (6)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.2/includes/admin/class-ur-admin-assets.php#L370
- security@wordfencehttps://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.2/includes/class-ur-ajax.php#L1003
- security@wordfencehttps://plugins.trac.wordpress.org/browser/user-registration/trunk/includes/admin/class-ur-admin-assets.php#L370
- security@wordfencehttps://plugins.trac.wordpress.org/browser/user-registration/trunk/includes/class-ur-ajax.php#L1003
- security@wordfencehttps://plugins.trac.wordpress.org/changeset/3485702/user-registration/trunk/includes/class-ur-ajax.php?contextall=1
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/c8798fb2-4cab-4960-9e32-fd74bb4a5091?source=cve
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 40× 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.
Showing the most recent 100 of 116 total refreshes for this CVE.
- 2026-08-02 05:22 UTCEG score recompute
- 2026-08-02 05:22 UTCGHSA enrichment
- 2026-08-02 02:27 UTCEPSS rescore
- 2026-08-01 04:16 UTCEPSS rescore
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- 2026-07-23 03:10 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-06-14 07:58 UTCGHSA enrichment
- 2026-06-13 23:00 UTCEPSS rescore
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- 2026-06-12 06:39 UTCGHSA enrichment
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- 2026-06-08 14:17 UTCEPSS rescore
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- 2026-06-07 22:02 UTCGHSA enrichment
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 15:25 UTCEPSS rescore
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- 2026-06-06 20:03 UTCGHSA enrichment
- 2026-06-06 13:47 UTCEPSS rescore
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- 2026-06-05 22:47 UTCEPSS rescore
- 2026-06-05 22:47 UTCEPSS rescore
- 2026-06-05 17:53 UTCGHSA enrichment
- 2026-06-05 06:10 UTCEPSS rescore
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- 2026-06-04 15:53 UTCGHSA enrichment
- 2026-06-04 13:12 UTCEPSS rescore
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- 2026-06-03 13:53 UTCGHSA enrichment
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- 2026-06-02 11:53 UTCGHSA enrichment
- 2026-06-01 13:52 UTCEPSS rescore
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- 2026-06-01 09:54 UTCGHSA enrichment
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- 2026-05-29 13:44 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-862
- CVE-2013-3960EG 9.9CRITICAL
- CVE-2015-10143EG 9.8CRITICAL
- CVE-2016-11036EG 9.8CRITICAL
- CVE-2018-11541EG 9.8CRITICAL
- CVE-2011-4183NVD 6.5EG 9.8CRITICAL
- CVE-2018-10251EG 9.8EPSS p91CRITICAL
- CVE-2018-1217EG 9.8EPSS p99CRITICAL
- CVE-2018-0015EG 9.8CRITICAL
- CVE-2017-12582EG 9.8CRITICAL
- CVE-2017-1000056EG 9.8CRITICAL
Frequently asked(5)
What is CVE-2026-3601?
When was CVE-2026-3601 disclosed?
Is CVE-2026-3601 actively exploited?
What is the CVSS score of CVE-2026-3601?
How do I remediate CVE-2026-3601?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-3601
Is Your Infrastructure Affected by CVE-2026-3601?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.