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CVE-2023-3958

18
FAUCET Score

CVE-2023-3958 describes a Server-Side Request Forgery (SSRF) vulnerability in the WP Remote Users Sync plugin for WordPress, affecting versions up to and including 1.2.12. Authenticated attackers with subscriber-level permissions can exploit this flaw to force the web application to make requests to arbitrary internal or external locations, potentially querying or modifying internal services. With a CVSS score of 5.4 (Medium), this vulnerability has a low attack complexity and requires low privileges, but its impact is limited to partial confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.13CPE matchmatch criteria
cpe:2.3:a:froger:wp_remote_users_sync:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

8.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 52nd percentile among its peer group of 21,957 CVEs.

Social Chatter

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.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/wp-remote-users-sync/trunk/inc/api/class-wprus-api-abstract.php
Product
plugins.trac.wordpress.org / changeset/2946667/wp-remote-users-sync
Patch
plugins.trac.wordpress.org / changeset/2953845/wp-remote-users-sync
Patch
wordfence.com / threat-intel/vulnerabilities/id/2e78c759-4a54-4ee4-8eff-df91fe9dad46
Third Party Advisory