CVE-2024-31237Network attack vector

Unauthenticated privilege escalation via invalid registration role

Published May 17, 2024 · Updated Apr 28, 2026

Privilege escalation in WP Sharks s2Member Pro 240315 and earlier allows remote attackers to register with elevated permissions. The registration handler accepts an invalid s2Member Level role because affected builds do not adequately validate the requested role. No account is required, and successful exploitation creates a new user with permissions above the site's configured default.

CVSS severity7.5
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Privilege escalation in WP Sharks s2Member Pro 240315 and earlier allows remote attackers to register with elevated permissions. The registration handler accepts an invalid s2Member Level role because affected builds do not adequately validate the requested role. No account is required, and successful exploitation creates a new user with permissions above the site's configured default.

The record

CVE
CVE-2024-31237
Published
May 17, 2024
Updated
Apr 28, 2026
Vendor
WP Sharks
Product
s2Member Pro
Classifications
CWE-269, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=240315
  2. Affected versionversion=n/a <=240315 changes=[{"at":"240325","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP Sharks · s2Member Proversion=0 <=240315; version=n/a <=240315 changes=[{"at":"240325","status":"unaffected"}]

Published CVSS scores

7.5PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1136Create Account

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo