CVEvulnerability
CVE-2026-9626
6.4 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-07-03
- Last modified
- 2026-07-06
- 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 JSON API User plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter of the post_comment API endpoint in versions up to, and including, 4.1.0 This is due to insufficient input sanitization in the post_comment() function, which passes the attacker-controlled comment_content value directly to wp_insert_comment() without applying any HTML sanitization, and additionally allows the caller to set comment_approved=1 to self-approve the comment and bypass moderation. This makes it possible for authenticated attackers, with subscriber-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/json-api-user/tags/4.1.0/controllers/User.php#L1007 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/json-api-user/tags/4.1.0/controllers/User.php#L979 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/browser/json-api-user/tags/4.1.0/controllers/User.php#L995 plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/changeset/3576431/json-api-user/trunk/controllers/User.php plugins.trac.wordpress.org
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fjson-api-user/tags/4.1.0&new_path=%2Fjson-api-user/tags/4.1.2 plugins.trac.wordpress.org
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c41b0370-2881-4053-98b1-9c70251a3b63?source=cve www.wordfence.com