CVE-2024-13883

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

CVSS 4.3 MEDIUMEPSS 0.2%CWE-352

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

21 Feb 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

victorfreitas · WPUpper Share Buttons

References

https://plugins.trac.wordpress.org/browser/wpupper-share-buttons/trunk/Controller/ajax.controller.php#L94 https://plugins.trac.wordpress.org/changeset/3262537/https://www.wordfence.com/threat-intel/vulnerabilities/id/5ca55c87-6548-43b8-a23f-d31a51df9533?source=cve