CVE-2025-9891 describes a Cross-Site Request Forgery (CSRF) vulnerability in the User Sync – Remote User Sync plugin for WordPress, affecting all versions up to and including 1.0.2. This flaw stems from inadequate nonce validation within the mo_user_sync_form_handler() function. An unauthenticated attacker could exploit this by tricking a site administrator into clicking a malicious link, leading to the plugin's deactivation. Rated Medium severity (CVSS 4.3), the attack requires user interaction but has low impact (deactivation) and no confidentiality or integrity compromise. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Cyberlord92 | User Sync | >= 0, <= 1.0.2CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.