CVE-2026-44977
critical · 9countly-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.
9
CVSS
0.4%
EPSS (exploit prob.)
38th
EPSS percentile
2026-10-16
Published
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weaknesses
CWE-79
References
- 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
- https://github.com/Countly/countly-server/security/advisories/GHSA-jqp4-p86c-phxc
- https://github.com/Countly/countly-server/security/advisories/GHSA-jqp4-p86c-phxc
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-44977