CVE-2025-14144

MEDIUM 6.4

Mstoic Shortcodes <= 2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'start' Shortcode Attribute

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

The Mstoic Shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'start' parameter of the ms_youtube_embeds shortcode in all versions up to, and including, 2.0 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.

CWE	CWE-79
Vendor	mstoic
Product	mstoic shortcodes
Published	Jan 7, 2026
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

mstoic / Mstoic Shortcodes

0 ≤ 2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/6e83c039-9b15-4e0c-8b07-3b906938c138?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/mstoic-shortcodes/trunk/functions/shortcodes/youtube_embeds.php#L117 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/mstoic-shortcodes/tags/2.0/functions/shortcodes/youtube_embeds.php#L117

Credits

zakaria