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S2member vulnerabilities

13 tracked advisories · slug s2member

Important: S2member appearing in this catalog does not mean your website is affected. Exposure depends on your installed version. How SiteRespond intelligence works

Tracked advisories

13

Latest advisory

7 August 2026

CISA KEV matches

0

In this WordPress feed

WordPress slug

s2member

Plugin

What this means for S2member

This catalog lists 13 known advisories affecting S2member. The most recent was published on 7 August 2026. If you use this software, compare your installed version against the affected ranges on each advisory and update to a fixed release outside those ranges. SiteRespond Defence checks your actual installed version when the plugin is connected — listing here does not by itself mean your site is vulnerable.

Latest issues

  • s2Member <= 260804 - Authenticated (Contributor+) Stored Cross-Site Scripting

    May allow attackers to run scripts in visitors' browsers or hijack admin sessions.

    Published 7 August 2026

  • s2Member <= 260127 - Unauthenticated Privilege Escalation via Account Takeover

    May allow access to accounts or admin areas without valid credentials.

    Published 18 February 2026

  • s2Member <= 251005 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

    May allow attackers to run scripts in visitors' browsers or hijack admin sessions.

    Published 18 February 2026

Vulnerability types

  • Cross-site scripting5
  • Remote code execution2
  • Authentication bypass1
  • Privilege escalation1

Authentication (inferred from titles)

  • Unauthenticated4
  • Authenticated4
  • Unspecified5

Advisory history

Known S2member advisories published by month.

All advisories

Check whether your installed version is affected

SiteRespond Defence matches your installed S2member version against this catalog when the Defence plugin is connected to your WordPress site.

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