What is CVE-2026-15731?

CVE-2026-15731 is a medium-severity vulnerability in Magazine3 Wp Multilang – Translation And Multilingual Plugin, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-09-24.

How severe is CVE-2026-15731?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Magazine3 Wp Multilang – Translation And Multilingual Plugin

CVE-2026-15731

The WP Multilang – Translation and Multilingual Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the post content in all versions up to, and including, 2.4.31 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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-09-24 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (14.5th percentile), scored 2026-09-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Magazine3 Wp Multilang – Translation And Multilingual Plugin

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-15731?: CVE-2026-15731 is a medium-severity vulnerability in Magazine3 Wp Multilang – Translation And Multilingual Plugin, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-09-24.
How severe is CVE-2026-15731?: Medium severity. CVSS v3 base score is 6.4 out of 10.