{"id":"CVE-2026-1902","aliases":["EUVD-2026-10097","GHSA-7g3p-6wq8-wj73"],"status":"published","title":"Hammas Calendar \u003c= 1.5.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'apix' Shortcode Attribute","description":"The Hammas Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'apix' parameter in the 'hp-calendar-manage-redirect' shortcode in all versions up to, and including, 1.5.11 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.","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":"2026-11-11","score":0.00224,"percentile":0.13202,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-03-07T01:21:21Z","modified":"2026-06-17T10:16:41Z","products":[{"vendor":"innovaatik","product":"hammas calendar"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/03956922-988a-4cb6-bf20-51878a5b1555?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/hammas-calendar/tags/1.5.11/hp-calendar.php#L37"},{"url":"https://plugins.trac.wordpress.org/browser/hammas-calendar/tags/1.5.11/src/HpPlugin.php#L54"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3474583%40hammas-calendar\u0026new=3474583%40hammas-calendar\u0026sfp_email=\u0026sfph_mail="},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1902"},{"url":"https://github.com/advisories/GHSA-7g3p-6wq8-wj73"}],"sources":{"cve":[{"id":"CVE-2026-1902","title":"Hammas Calendar \u003c= 1.5.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'apix' Shortcode Attribute","description":"The Hammas Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'apix' parameter in the 'hp-calendar-manage-redirect' shortcode in all versions up to, and including, 1.5.11 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.","status":"published","published":"2026-03-07T01:21:21.162Z","modified":"2026-04-08T16:32:58.212Z","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":"2026-11-02T14:20:01.271368Z"}],"euvd":[{"id":"EUVD-2026-10097","description":"The Hammas Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'apix' parameter in the 'hp-calendar-manage-redirect' shortcode in all versions up to, and including, 1.5.11 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.","status":"published","published":"2026-03-07T01:21:21Z","modified":"2026-04-08T16:32:58Z","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":"2026-11-02T19:25:11.650607Z"}],"ghsa":[{"id":"GHSA-7g3p-6wq8-wj73","title":"The Hammas Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ...","description":"The Hammas Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'apix' parameter in the 'hp-calendar-manage-redirect' shortcode in all versions up to, and including, 1.5.11 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.","status":"published","published":"2026-03-07T03:30:27Z","modified":"2026-03-07T03:30:27Z","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":"2026-11-02T15:06:29.785261Z"}],"nvd":[{"id":"CVE-2026-1902","description":"The Hammas Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'apix' parameter in the 'hp-calendar-manage-redirect' shortcode in all versions up to, and including, 1.5.11 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.","status":"published","published":"2026-03-07T02:16:11.893Z","modified":"2026-06-17T10:16:41.75Z","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":"2026-11-02T14:12:08.279852Z"}]}}