What’s Vulnerable › Vulnerabilities

CVE-2025-9854: A Simple Multilanguage Plugin <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-03 · updated 2026-10-11
• Weakness: CWE-79

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 products

• piupiiu A Simple Multilanguage Plugin: through 1.0

References

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

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