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WP Remote Users Sync <= 1.2.12 — Authenticated (Subscriber+) Server Side Request Forgery

CVE-2023-3958Published · Updated

Action summary

Affected: ≤1.2.12Update to 1.2.13 or newer

All remediation steps
Watch plugin
Severity
High8.5
CVSS
8.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:C Scope
Changed
C:H Confidentiality
High
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-918 SSRF
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

WP Remote Users Sync wp-remote-users-sync

  1. Affected≤ 1.2.12
  2. Patched in1.2.13

Update to 1.2.13 or newer.

You are affected if you run ≤ 1.2.12. Version 1.2.13 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP Remote Users Sync.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 1.2.13, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch WP Remote Users Sync to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to István Márton.

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in WP Remote Users Sync

All 3
More vulnerabilities in WP Remote Users Sync
SeverityVulnerabilityCVEPublished
Medium5.3Unauthenticated Information Exposure
<2.2.0Update to 2.2.0
CVE-2026-111962
Medium4.3Missing Authorization to Authenticated (Subscriber+) Log View
≤1.2.11Update to 1.2.12
CVE-2023-4374

Same weakness (SSRF)

All SSRF
Other SSRF vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 8.5

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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