CVE Explorer
CVE-2025-6831
The User Registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's urcr_restrict shortcode in all versions up to, and including, 4.2.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder","vendor":"wpeverest","versions":[{"lessThanOrEqual":"4.2.4","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:5fb5fda33d81335c75235bb1616fce610b56bcc3f179d6fcefcd66c8265a0d17 · sha256:97363f365738e4e7… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":6.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:5fb5fda33d81335c75235bb1616fce610b56bcc3f179d6fcefcd66c8265a0d17 · sha256:97363f365738e4e7… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:5fb5fda33d81335c75235bb1616fce610b56bcc3f179d6fcefcd66c8265a0d17 · sha256:97363f365738e4e7… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"url":"https://plugins.trac.wordpress.org/browser/user-registration/tags/4.2.4/modules/content-restriction/class-urcr-shortcodes.php"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:5fb5fda33d81335c75235bb1616fce610b56bcc3f179d6fcefcd66c8265a0d17 · sha256:97363f365738e4e7… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/browser/user-registration/tags/4.2.4/modules/content-restriction/class-urcr-shortcodes.php#L147"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:5fb5fda33d81335c75235bb1616fce610b56bcc3f179d6fcefcd66c8265a0d17 · sha256:97363f365738e4e7… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/changeset/3329704/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:5fb5fda33d81335c75235bb1616fce610b56bcc3f179d6fcefcd66c8265a0d17 · sha256:97363f365738e4e7… · /containers/cna/references/4
{"url":"https://wordpress.org/plugins/user-registration/#developers"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:5fb5fda33d81335c75235bb1616fce610b56bcc3f179d6fcefcd66c8265a0d17 · sha256:97363f365738e4e7… · /containers/cna/references/3
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/50f3e469-f788-45da-95e7-aa6da1e87fd1?source=cve"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:5fb5fda33d81335c75235bb1616fce610b56bcc3f179d6fcefcd66c8265a0d17 · sha256:97363f365738e4e7… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.