Reported vulnerability

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

Q: Which versions of s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions are affected?

Wordfence lists these affected versions: Start version unspecified, through 260804. Use the version checker above to compare your installed release with this report.

Q: Is a fix available for s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions?

Wordfence reports a fix for this issue in s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions. It lists these fixed versions: 260805. Back up your website and test the recommended update before applying it to your live site.

Q: Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Published 7 Aug 2026

Updated 15 Aug 2026

CVE-2026-15047

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

medium · CVSS 6.4

The s2Member plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 260804 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Severity vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions

Software: plugin · s2member
Affected versions: Start version unspecified, through 260804
Fix availability: Fix available
Fixed versions: 260805

Recommended action

Update to version 260805, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/3ac8a509-e54b-40e7-9fd8-4aef03168827?source=api-prod

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions are affected?

Wordfence lists these affected versions: Start version unspecified, through 260804. Use the version checker above to compare your installed release with this report.

Is a fix available for s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions?

Wordfence reports a fix for this issue in s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions. It lists these fixed versions: 260805. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.

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