XSS in Mallsop List Site Contributors

CVE-2026-0594

The List Site Contributors plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'alpha' parameter in versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping. This makes it pos…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (48.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-0594?
CVE-2026-0594 is a medium-severity vulnerability in Mallsop List Site Contributors, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-01-14.
How severe is CVE-2026-0594?
Medium severity. CVSS v3 base score is 6.1 out of 10.