CVEvulnerability
CVE-2026-8891
6.4 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-05-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
Description
The BitForm plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'bitform' shortcode in versions up to, and including, 1.1.0. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes ('width' and 'height') in the Shortcode::shortcode() function, which are interpolated directly into the 'style' attribute of an <iframe> element. 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.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://plugins.trac.wordpress.org/browser/bitform/tags/1.1.0/Common/Shortcode.php#L13 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/bitform/tags/1.1.0/Common/Shortcode.php#L17 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/bitform/tags/1.1.0/index.php#L54 plugins.trac.wordpress.org
- https://www.wordfence.com/threat-intel/vulnerabilities/id/71167dec-38ec-4eb3-8fab-25eca0f8b071?source=cve www.wordfence.com