{"id":"CVE-2024-13883","aliases":["EUVD-2025-4550","GHSA-gxvc-5wrv-69rq"],"status":"published","title":"WPUpper Share Buttons \u003c= 3.51 - Cross-Site Request Forgery to Custom CSS Update","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.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00223,"percentile":0.12993,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2025-02-21T03:21:20Z","modified":"2026-06-17T07:02:55Z","products":[{"vendor":"unknown","product":"wpupper share buttons"},{"vendor":"victorfreitas","product":"wpupper share buttons"},{"vendor":"victorfreitas","product":"wpupper_share_buttons"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/5ca55c87-6548-43b8-a23f-d31a51df9533?source=cve","tags":["Third Party Advisory"]},{"url":"https://plugins.trac.wordpress.org/browser/wpupper-share-buttons/trunk/Controller/ajax.controller.php#L94","tags":["Product"]},{"url":"https://plugins.trac.wordpress.org/changeset/3262537/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-13883"},{"url":"https://plugins.trac.wordpress.org/changeset/3262537"},{"url":"https://github.com/advisories/GHSA-gxvc-5wrv-69rq"}],"sources":{"cve":[{"id":"CVE-2024-13883","title":"WPUpper Share Buttons \u003c= 3.51 - Cross-Site Request Forgery to Custom CSS Update","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.","status":"published","published":"2025-02-21T03:21:20.35Z","modified":"2026-04-08T16:55:39.04Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:34:13.321108Z"}],"euvd":[{"id":"EUVD-2025-4550","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.","status":"published","published":"2025-02-21T03:21:20Z","modified":"2026-04-08T16:55:39Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:57.466919Z"}],"ghsa":[{"id":"GHSA-gxvc-5wrv-69rq","title":"The WPUpper Share Buttons plugin for WordPress is vulnerable to Cross-Site Request Forgery in all...","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.","status":"published","published":"2025-02-21T06:31:09Z","modified":"2026-04-08T18:33:51Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:07:15.710349Z"}],"nvd":[{"id":"CVE-2024-13883","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.","status":"published","published":"2025-02-21T04:15:10.16Z","modified":"2026-06-17T07:02:55.157Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:10:44.508862Z"}]}}