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.
Published: 2025-02-21
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-4550 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.
History

Wed, 08 Apr 2026 17:45:00 +0000

Type Values Removed Values Added
References

Tue, 25 Feb 2025 04:00:00 +0000

Type Values Removed Values Added
First Time appeared Victorfreitas
Victorfreitas wpupper Share Buttons
CPEs cpe:2.3:a:victorfreitas:wpupper_share_buttons:*:*:*:*:*:wordpress:*:*
Vendors & Products Victorfreitas
Victorfreitas wpupper Share Buttons

Fri, 21 Feb 2025 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 21 Feb 2025 03:30:00 +0000

Type Values Removed Values Added
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.
Title WPUpper Share Buttons <= 3.51 - Cross-Site Request Forgery to Custom CSS Update
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}


Subscriptions

Victorfreitas Wpupper Share Buttons
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-08T16:55:39.040Z

Reserved: 2025-02-17T22:42:40.259Z

Link: CVE-2024-13883

cve-icon Vulnrichment

Updated: 2025-02-21T15:44:23.368Z

cve-icon NVD

Status : Modified

Published: 2025-02-21T04:15:10.160

Modified: 2026-04-08T18:20:20.507

Link: CVE-2024-13883

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses