Vulnerability · Published Sep 6, 2023 · Assigned by Wordfence
CVE-2023-4779User Submitted Posts – Enable Users to Submit Posts from the Front End <= 20230811 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Medium 6.4
In plain English
A medium-severity cross-site scripting in User Submitted Posts – Enable Users to Submit Posts from the Front End from specialk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Official description
The User Submitted Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's [usp_gallery] shortcode in versions up to, and including, 20230811 due to insufficient input sanitization and output escaping on user supplied attributes like 'before'. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| specialk | User Submitted Posts – Enable Users to Submit Posts from the Front End | 0 – through 20230811 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N