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VulnerabilityPublished

CVE-2026-125440: s2Member (WordPress plugin) · Basic XSS

Affects s2Member (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 5.3 Medium : upgrade to 261110 when convenient.

Data as of 13 Nov 2026, 15:06 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (Patchstack)CVSS 3.15.3
Patch
Available – fixed in 261110
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
s2Members2memberAffected
  • <261110
Fixed in
  • 261110

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.

References

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