CVE-2026-125440: s2Member (WordPress plugin) · Basic XSS
Affects s2Member (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 5.3 Medium : upgrade to 261110 when convenient.
Data as of 13 Nov 2026, 15:06 UTC
Thin evidence
One scorer or none| CNA (Patchstack) | CVSS 3.1 | 5.3 |
|---|
- Patch
- Available – fixed in 261110
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade s2Member (WordPress plugin) to 261110.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| s2Members2member | Affected
| Fixed in
|
AI-suggested
A fixed version of s2Member is available at version 261110. Users should upgrade to version 261110 or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Description
CVE-2026-125440 is a medium severity vulnerability in the s2Member plugin by Cristián Lávaque. It involves improper neutralization of script-related HTML tags, leading to a basic cross-site scripting (XSS) issue. This vulnerability allows code injection via crafted input. The flaw affects s2Member versions from the initial release up to but not including version 261110, where it has been fixed.