CVE-2023-41957

FAUCET Score

CVE-2023-41957 is a critical Improper Privilege Management vulnerability affecting the Simple Membership plugin for WordPress, versions up to 4.3.4. With a CVSS score of 9.8, this flaw allows unauthenticated attackers to achieve Privilege Escalation, leading to full compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants immediate patching.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 4.3.5CPE matchmatch criteria	cpe:2.3:a:simple-membership-plugin:simple_membership::::::wordpress::*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

Exploitability Score

3.9

Impact Score

4.7

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.60%

Probability of exploitation in next 30 days

EPSS Percentile

45.1%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0060 is in the 25th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

patchstack.com / database/vulnerability/simple-membership/wordpress-simple-membership-plugin-4-3-4-unauthenticated-membership-role-privilege-escalation-vulnerability

Third Party Advisory