Security Advisory

CVE-2024-13883

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-02-21 03:21:20

Last updated 2026-04-08 16:55:39

Assigner Wordfence

State PUBLISHED

Description

The WPUpper Share Buttons plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.51. This is due to missing or incorrect nonce validation on the save_custom_css_request function. This makes it possible for unauthenticated attackers to inject custom CSS to modify a site via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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