PatchSiren cyber security CVE debrief

CVE-2026-4871 pstruik CVE debrief

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. This vulnerability exists due to insufficient input sanitization and output escaping, allowing 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. 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.

Vendor: pstruik
Product: Sports Club Management
CVSS: MEDIUM 6.4
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-04-08
Original CVE updated: 2026-07-24
Advisory published: 2026-04-08
Advisory updated: 2026-07-24

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

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.

Sources and references

Verified primary and authoritative sources

CVE-2026-4871 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-4871

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-4871 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-4871

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Source reference
Unverified legacy reference

URL: https://plugins.trac.wordpress.org/browser/sports-club-management/tags/1.12.9/code/members_shortcodes.php

[email protected]
Source reference
Unverified legacy reference

URL: https://plugins.trac.wordpress.org/browser/sports-club-management/trunk/code/members_shortcodes.php

[email protected]

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.