CVE-2025-9854

MEDIUM 6.4

A Simple Multilanguage Plugin <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

The A Simple Multilanguage Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'asmp-switcher' shortcode in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

CWE	CWE-79
Vendor	piupiiu
Product	a simple multilanguage plugin
Published	Oct 3, 2025
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

piupiiu / A Simple Multilanguage Plugin

0 ≤ 1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/77033d00-f794-4dbe-9454-17c312855491?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/a-simple-multilanguage/trunk/a-simple-multilang.php#L315

Credits

Gilang Asra Bilhadi