{"id":"CVE-2025-9850","aliases":["EUVD-2025-27666","GHSA-6752-9vvf-rchv"],"status":"published","title":"Evenium \u003c= 1.3.11 - Authenticated (Contributor+) Stored Cross-Site Scripting","description":"The Evenium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'evenium_single_event' shortcode in all versions up to, and including, 1.3.11 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00197,"percentile":0.09569,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-09-11T07:24:51Z","modified":"2026-10-19T17:10:00Z","products":[{"vendor":"evenium","product":"evenium"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/394732cc-94b5-4fbf-bd78-da18791724be?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/evenium/trunk/src/evenium_quicktags.php#L27"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-9850"},{"url":"https://github.com/advisories/GHSA-6752-9vvf-rchv"}],"sources":{"cve":[{"id":"CVE-2025-9850","title":"Evenium \u003c= 1.3.11 - Authenticated (Contributor+) Stored Cross-Site Scripting","description":"The Evenium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'evenium_single_event' shortcode in all versions up to, and including, 1.3.11 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2025-09-11T07:24:51.793Z","modified":"2026-04-08T16:46:41.916Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:34.096798Z"}],"euvd":[{"id":"EUVD-2025-27666","description":"The Evenium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'evenium_single_event' shortcode in all versions up to, and including, 1.3.11 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2025-09-11T07:24:51Z","modified":"2026-04-08T16:46:41Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:02.846408Z"}],"ghsa":[{"id":"GHSA-6752-9vvf-rchv","title":"The Evenium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ...","description":"The Evenium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'evenium_single_event' shortcode in all versions up to, and including, 1.3.11 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2025-09-11T09:31:45Z","modified":"2025-09-11T09:31:56Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:03:34.267891Z"}],"nvd":[{"id":"CVE-2025-9850","description":"The Evenium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'evenium_single_event' shortcode in all versions up to, and including, 1.3.11 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2025-09-11T08:15:39.11Z","modified":"2026-10-19T17:10:00.173Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:28.834562Z"}]}}