{"id":"CVE-2026-44977","state":"PUBLISHED","title":"countly-server: Stored XSS in feedback upload enables app-admin to compromise global admin session context","description":"countly-server is the server-side part of Countly, a product analytics solution. Prior to 24.05.50 and 25.03.44, plugins/star-rating/api/api.js allows a non-global application administrator to use uploadFeedbackFile to store attacker-controlled active content while trusting the supplied MIME type. plugins/star-rating/frontend/app.js publicly serves the stored content from feedback/preview/ with the attacker-influenced Content-Type, so a global administrator who opens the preview executes the payload in the Countly origin and exposes authenticated session capabilities, including auth_token and csrf_token values. This issue is fixed in versions 24.05.50 and 25.03.44.","publishedAt":"2026-10-16T16:04:45.868Z","updatedAt":"2026-10-21T02:24:31.741Z","severity":{"score":9,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["Countly countly-server"],"affected":[{"vendor":"Countly","product":"countly-server","versions":[{"version":"< 24.05.50","status":"affected"},{"version":">= 25.03, < 25.03.44","status":"affected"}]}],"references":["https://github.com/Countly/countly-server/security/advisories/GHSA-jqp4-p86c-phxc","https://github.com/Countly/countly-server/commit/ae899f37bc6d70c1b44859756ce80a204ae72631","https://github.com/Countly/countly-server/commit/fcb16c808c0fdb6dc99fe9c66de7fc560b3a9c41","https://github.com/Countly/countly-server/releases/tag/24.05.50","https://github.com/Countly/countly-server/releases/tag/25.03.44"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44977.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44977","state":"PUBLISHED","datePublished":"2026-10-16T16:04:45.868Z","dateUpdated":"2026-10-21T02:24:31.741Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-08T16:23:33.264Z"},"containers":{"cna":{"title":"countly-server: Stored XSS in feedback upload enables app-admin to compromise global admin session context","descriptions":[{"lang":"en","value":"countly-server is the server-side part of Countly, a product analytics solution. Prior to 24.05.50 and 25.03.44, plugins/star-rating/api/api.js allows a non-global application administrator to use uploadFeedbackFile to store attacker-controlled active content while trusting the supplied MIME type. plugins/star-rating/frontend/app.js publicly serves the stored content from feedback/preview/ with the attacker-influenced Content-Type, so a global administrator who opens the preview executes the payload in the Countly origin and exposes authenticated session capabilities, including auth_token and csrf_token values. This issue is fixed in versions 24.05.50 and 25.03.44."}],"affected":[{"vendor":"Countly","product":"countly-server","versions":[{"version":"< 24.05.50","status":"affected"},{"version":">= 25.03, < 25.03.44","status":"affected"}]}],"references":[{"url":"https://github.com/Countly/countly-server/security/advisories/GHSA-jqp4-p86c-phxc","name":"https://github.com/Countly/countly-server/security/advisories/GHSA-jqp4-p86c-phxc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/Countly/countly-server/commit/ae899f37bc6d70c1b44859756ce80a204ae72631","name":"https://github.com/Countly/countly-server/commit/ae899f37bc6d70c1b44859756ce80a204ae72631","tags":["x_refsource_MISC"]},{"url":"https://github.com/Countly/countly-server/commit/fcb16c808c0fdb6dc99fe9c66de7fc560b3a9c41","name":"https://github.com/Countly/countly-server/commit/fcb16c808c0fdb6dc99fe9c66de7fc560b3a9c41","tags":["x_refsource_MISC"]},{"url":"https://github.com/Countly/countly-server/releases/tag/24.05.50","name":"https://github.com/Countly/countly-server/releases/tag/24.05.50","tags":["x_refsource_MISC"]},{"url":"https://github.com/Countly/countly-server/releases/tag/25.03.44","name":"https://github.com/Countly/countly-server/releases/tag/25.03.44","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"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":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-16T16:04:45.868Z"},"source":{"advisory":"GHSA-jqp4-p86c-phxc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/Countly/countly-server/security/advisories/GHSA-jqp4-p86c-phxc","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-21T02:24:09.405721Z","id":"CVE-2026-44977","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-21T02:24:31.741Z"}}]}}}