{"id":"CVE-2025-14548","aliases":["EUVD-2025-204784","GHSA-hj2f-hxvq-38r7"],"status":"published","title":"Calendar \u003c= 1.3.16 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'event_desc'","description":"The Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'event_desc' parameter in all versions up to, and including, 1.3.16 due to insufficient input sanitization and output escaping. 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, granted they can convince an administrator to enable lower privilege users to manage calendar events via the plugin settings.","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":"2026-11-09","score":0.00236,"percentile":0.1461,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-12-23T09:20:00Z","modified":"2026-10-19T22:10:00Z","products":[{"vendor":"humhub","product":"calendar"},{"vendor":"kieranoshea","product":"calendar"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/2e61489d-a433-4d44-bb12-8c84204922b9?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/calendar/trunk/calendar.php#L2154"},{"url":"https://plugins.trac.wordpress.org/browser/calendar/trunk/calendar.php#L899"},{"url":"https://plugins.trac.wordpress.org/changeset?new=3419088%40calendar%2Ftrunk\u0026old=3122280%40calendar%2Ftrunk"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-14548"},{"url":"https://github.com/advisories/GHSA-hj2f-hxvq-38r7"}],"sources":{"cve":[{"id":"CVE-2025-14548","title":"Calendar \u003c= 1.3.16 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'event_desc'","description":"The Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'event_desc' parameter in all versions up to, and including, 1.3.16 due to insufficient input sanitization and output escaping. 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, granted they can convince an administrator to enable lower privilege users to manage calendar events via the plugin settings.","status":"published","published":"2025-12-23T09:20:00.615Z","modified":"2026-04-08T16:44:22.393Z","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":"2026-11-02T14:32:28.250136Z"}],"euvd":[{"id":"EUVD-2025-204784","description":"The Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'event_desc' parameter in all versions up to, and including, 1.3.16 due to insufficient input sanitization and output escaping. 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, granted they can convince an administrator to enable lower privilege users to manage calendar events via the plugin settings.","status":"published","published":"2025-12-23T09:20:00Z","modified":"2026-04-08T16:44:22Z","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":"2026-11-02T19:25:04.728681Z"}],"ghsa":[{"id":"GHSA-hj2f-hxvq-38r7","title":"The Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ...","description":"The Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'event_desc' parameter in all versions up to, and including, 1.3.16 due to insufficient input sanitization and output escaping. 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, granted they can convince an administrator to enable lower privilege users to manage calendar events via the plugin settings.","status":"published","published":"2025-12-23T12:30:18Z","modified":"2025-12-23T12:30:29Z","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":"2026-11-02T15:05:19.885762Z"}],"nvd":[{"id":"CVE-2025-14548","description":"The Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'event_desc' parameter in all versions up to, and including, 1.3.16 due to insufficient input sanitization and output escaping. 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, granted they can convince an administrator to enable lower privilege users to manage calendar events via the plugin settings.","status":"published","published":"2025-12-23T10:15:43.847Z","modified":"2026-10-19T22:10:00.13Z","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":"2026-11-02T14:11:52.309391Z"}]}}