WordPress security changelog
HIGH CVE-2023-3958 Modified

WP Remote Users Sync: Server-side request forgery

WP Remote Users Sync is affected by server-side request forgery. Exploitation requires an authenticated WordPress account. The vulnerable server can be induced to make attacker-selected network requests.

CVE / CNA score 8.5 CVSS 3.1 · security@wordfence.com
NVD score 5.4 CVSS 3.1 · nvd@nist.gov
Component
WP Remote Users Sync
Plugin slug
wp-remote-users-sync
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Aug 16, 2023
Weakness
CWE-918 — Server-Side Request Forgery (SSRF)

This CVE was published Aug 16, 2023 and is one of 2 known issues for this plugin.

What to do

Update, patch or deactivate.

Update WP Remote Users Sync to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The WP Remote Users Sync plugin for WordPress is vulnerable to Server Side Request Forgery via the 'notify_ping_remote' AJAX function in versions up to, and including, 1.2.12. This can allow authenticated attackers with subscriber-level permissions or above to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services. This was partially patched in version 1.2.12 and fully patched in version 1.2.13.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

NVD vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Primary and upstream sources