CVE-2026-125440

WordPress s2Member plugin <= 261106 - Content Injection vulnerability

Medium 5.3

Description

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Cristián Lávaque s2Member s2member allows Code Injection.This issue affects s2Member: from n/a through 261106.

Key facts

Published: 13 Nov 2026
Last changed: 13 Nov 2026
Assigned by: Patchstack
EPSS: 0.347% likely to be exploited in the next 30 days, higher than 28.771% of CVEs (scores for 15 Nov 2026)
SSVC (CISA): Exploitation: none; Automatable: no; Technical impact: partial

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

5.3CVSS 3.1, Mediumfrom the CNA (Patchstack)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What to do

Update the WordPress s2Member plugin to the latest available version (at least 261110).CNA solution statement

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

Code Injection (CNA impact statement)

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Vendor	Product	Versions
Cristián Lávaque	s2Member	Default status: unaffected 0 up to and including 261106 (affected); at 261110 unaffected

Timeline

13 Nov 2026 Published

Weakness

CWE-80

References

patchstack.comvdb-entry