CVE-2026-4871 pstruik CVE debrief

Who should care

Users of the Sports Club Management plugin for WordPress, particularly those with Contributor-level access and above, should be aware of this vulnerability and take steps to mitigate it. This includes updating the plugin to a version that addresses this vulnerability, restricting access to the plugin's shortcode functionality, and implementing additional security measures.

Technical summary

The Sports Club Management plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before' and 'after' attributes of the `scm_member_data` shortcode in all versions up to, and including, 1.12.9. The vulnerability exists due to insufficient input sanitization and output escaping, allowing authenticated attackers with Contributor-level access and above to inject arbitrary web scripts.

Defensive priority

Medium

Recommended defensive actions

• Update the Sports Club Management plugin to a version that addresses this vulnerability
• Restrict access to the plugin's shortcode functionality
• Implement additional security measures, such as input validation and output encoding
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-04-08T07:16:22.690Z and was last modified on 2026-07-24T20:10:00.147Z. The NVD entry is currently Deferred. This information is based on the provided source corpus. Further verification is recommended to confirm affected scope and severity.

Official resources