{"id":"CVE-2026-11907","aliases":["EUVD-2026-54366","GHSA-vq9h-6p44-rphw"],"status":"published","title":"Stream \u003c= 4.2.0 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Disclosure via Heartbeat API","description":"The Stream plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.2.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to access all Stream activity records via the Heartbeat API.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00375,"percentile":0.31942,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-08-07T04:25:55Z","modified":"2026-08-12T21:00:52Z","products":[{"vendor":"xwp","product":"stream – activity log \u0026 audit trail"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/b7c7e45a-581e-4cf0-83ac-cbca816701f1?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/stream/tags/4.2.1/classes/class-live-update.php#L186"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-11907"},{"url":"https://github.com/advisories/GHSA-vq9h-6p44-rphw"}],"sources":{"cve":[{"id":"CVE-2026-11907","title":"Stream \u003c= 4.2.0 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Disclosure via Heartbeat API","description":"The Stream plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.2.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to access all Stream activity records via the Heartbeat API.","status":"published","published":"2026-08-07T04:25:55.665Z","modified":"2026-08-08T02:51:50.711Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:20:04.809935Z"}],"euvd":[{"id":"EUVD-2026-54366","description":"The Stream plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.2.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to access all Stream activity records via the Heartbeat API.","status":"published","published":"2026-08-07T04:25:55Z","modified":"2026-08-08T02:51:50Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T18:02:06.573967Z"}],"ghsa":[{"id":"GHSA-vq9h-6p44-rphw","title":"The Stream plugin for WordPress is vulnerable to authorization bypass in all versions up to, and...","description":"The Stream plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.2.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to access all Stream activity records via the Heartbeat API.","status":"published","published":"2026-08-07T06:30:25Z","modified":"2026-08-07T06:30:25Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:10:11.041675Z"}],"nvd":[{"id":"CVE-2026-11907","description":"The Stream plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.2.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to access all Stream activity records via the Heartbeat API.","status":"published","published":"2026-08-07T05:16:57.457Z","modified":"2026-08-12T21:00:52.257Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:35.386166Z"}]}}