Mstoic Shortcodes <= 2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'start' Shortcode Attribute
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-14144
- 2026-10-03 Alias added: GHSA-c84q-h67q-7h8r
References
Other 3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6e83c039-9b15-4e0c-8b07-3b906938c138?source=cve
- https://plugins.trac.wordpress.org/browser/mstoic-shortcodes/trunk/functions/shortcodes/youtube_embeds.php#L117
- https://plugins.trac.wordpress.org/browser/mstoic-shortcodes/tags/2.0/functions/shortcodes/youtube_embeds.php#L117
Sources
- CVE-2025-14144 · CVE Program
- CVE-2025-14144 · NVD
- FIRST EPSS
- GHSA-c84q-h67q-7h8r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences