Answer in brief
CVE-2026-87111 records a High severity (CVSS 7.2) vulnerability in User Registration PRO <= 6.2.9 - Unauthenticated Stored Cross-Site Scripting via HTTP Referer Header. The current sources do not mark it as known exploited. The current feed maps WPEverest/User Registration PRO – Custom Registration Form, Login Form, and User Profile WordPress Plugin (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WPEverest/User Registration PRO – Custom Registration Form, Login Form, and User Profile WordPress Plugin (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WPEverest/User Registration PRO – Custom Registration Form, Login Form, and User Profile WordPress Plugingeneric | >=0 <=6.2.9 | Not reported |
Published upstream
Oct 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 16, 2026
The User Registration PRO – Custom Registration Form, Login Form, and User Profile WordPress Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via HTTP Referer Header in all versions up to, and including, 6.2.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is present only in the premium build of the plugin and is not present in the free WordPress.org distribution. The nonce required to call the vulnerable AJAX endpoint is localized into the page source of every front-end page for anonymous visitors, making it fully obtainable by unauthenticated attackers.
Quoted source text, attributed separately from HOL analysis.