WP Games Embed <= 0.1beta - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
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 WP Games Embed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [game] shortcode in all versions up to and including 0.1beta. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'width', 'height', 'src', 'title', 'description', 'game_url', 'main', and 'thumb', which are all directly concatenated into HTML output without any 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-2026-3996
- 2026-10-03 Alias added: GHSA-4274-9vhj-c283
References
Other 9
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6a8cc968-01a5-45b8-bee8-86c858f86514?source=cve
- https://plugins.trac.wordpress.org/browser/wp-games-embed/trunk/wp-games-embed.php#L41
- https://plugins.trac.wordpress.org/browser/wp-games-embed/tags/0.1/wp-games-embed.php#L41
- https://plugins.trac.wordpress.org/browser/wp-games-embed/trunk/wp-games-embed.php#L32
- https://plugins.trac.wordpress.org/browser/wp-games-embed/tags/0.1/wp-games-embed.php#L32
- https://plugins.trac.wordpress.org/browser/wp-games-embed/trunk/wp-games-embed.php#L35
- https://plugins.trac.wordpress.org/browser/wp-games-embed/tags/0.1/wp-games-embed.php#L35
- https://plugins.trac.wordpress.org/browser/wp-games-embed/trunk/wp-games-embed.php#L14
- https://plugins.trac.wordpress.org/browser/wp-games-embed/tags/0.1/wp-games-embed.php#L14
More sammyb vulnerabilities
- TI-2025-17340 WordPress WP Background Tile plugin <= 1.0 - CSRF to Stored XSS vulnerability CVSS 3.1HIGH 7.1
Sources
- CVE-2026-3996 · CVE Program
- CVE-2026-3996 · NVD
- FIRST EPSS
- GHSA-4274-9vhj-c283 · 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