Vulnerability · Published Feb 21, 2025 · Assigned by Wordfence

CVE-2024-13883WPUpper Share Buttons <= 3.51 - Cross-Site Request Forgery to Custom CSS Update

Medium 4.3

In plain English

A medium-severity cross-site request forgery in WPUpper Share Buttons from victorfreitas. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 87.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
victorfreitas	WPUpper Share Buttons	0 – through 3.51

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

In plain English

Official description

Affected products (as reported)

References