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CVE-2025-9854

MEDIUM 6.4 CVSS 3.1
Published
October 3, 2025
Last modified
October 11, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Description

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • piupiiu A Simple Multilanguage Plugin — Up to and including 1.0

References

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