CVE-2026-44977
Tenable Plugin
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Threat Intelligence Pending
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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.
Quick Facts
| CVE ID | CVE-2026-44977 |
| CVSS Score | 9.0 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| Published | 2026-10-16 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/Countly/countly-server/commit/ae899f37bc6…
- https://github.com/Countly/countly-server/commit/fcb16c808c0…
- https://github.com/Countly/countly-server/releases/tag/24.05…
- https://github.com/Countly/countly-server/releases/tag/25.03…
- https://github.com/Countly/countly-server/security/advisorie…