CVE Watch21 oct 2026

CVE-2026-44977

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

CVSS

9.0

Crítico

EPSS

0.3%

p26

KEV

—

Exploit Today

0-100

Publicado: 16 oct 2026 · Última mod.: 21 oct 2026 · CWE-79

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-10-172026-10-20

Descripción técnica

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.

Referencias oficiales

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