CVE-2026-3996 json
WP Games Embed <= 0.1beta - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
published 2026-03-21 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-14190
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- sammyb WP Games Embed
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/6a8cc968-01a5-45b8-bee8-86c858f86514?source=cve
- plugins.trac.wordpress.org /browser/wp-games-embed/trunk/wp-games-embed.php#L41
- plugins.trac.wordpress.org /browser/wp-games-embed/tags/0.1/wp-games-embed.php#L41
- plugins.trac.wordpress.org /browser/wp-games-embed/trunk/wp-games-embed.php#L32
- plugins.trac.wordpress.org /browser/wp-games-embed/tags/0.1/wp-games-embed.php#L32
- plugins.trac.wordpress.org /browser/wp-games-embed/trunk/wp-games-embed.php#L35
- plugins.trac.wordpress.org /browser/wp-games-embed/tags/0.1/wp-games-embed.php#L35
- plugins.trac.wordpress.org /browser/wp-games-embed/trunk/wp-games-embed.php#L14
- plugins.trac.wordpress.org /browser/wp-games-embed/tags/0.1/wp-games-embed.php#L14
Sources
- CVE List CVE-2026-3996
- NVD CVE-2026-3996
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.