{"id":"CVE-2026-1902","state":"PUBLISHED","title":"Hammas Calendar <= 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.","publishedAt":"2026-03-07T01:21:21.162Z","updatedAt":"2026-04-08T16:32:58.212Z","severity":{"score":6.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["innovaatik Hammas Calendar"],"affected":[{"vendor":"innovaatik","product":"Hammas Calendar","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.5.11","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/03956922-988a-4cb6-bf20-51878a5b1555?source=cve","https://plugins.trac.wordpress.org/browser/hammas-calendar/tags/1.5.11/hp-calendar.php#L37","https://plugins.trac.wordpress.org/browser/hammas-calendar/tags/1.5.11/src/HpPlugin.php#L54","https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3474583%40hammas-calendar&new=3474583%40hammas-calendar&sfp_email=&sfph_mail="],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/1xxx/CVE-2026-1902.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-1902","state":"PUBLISHED","datePublished":"2026-03-07T01:21:21.162Z","dateUpdated":"2026-04-08T16:32:58.212Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-02-04T15:08:30.694Z"},"containers":{"cna":{"title":"Hammas Calendar <= 1.5.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'apix' Shortcode Attribute","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"innovaatik","product":"Hammas Calendar","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.5.11","versionType":"semver"}]}],"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=&sfph_mail=&reponame=&old=3474583%40hammas-calendar&new=3474583%40hammas-calendar&sfp_email=&sfph_mail="}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-08T16:32:58.212Z"},"credits":[{"lang":"en","type":"finder","value":"Djaidja Moundjid"}],"timeline":[{"time":"2026-03-02T13:55:17.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-03-06T11:23:32.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-09T19:00:26.131873Z","id":"CVE-2026-1902","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-09T19:34:13.220Z"}}]}}}