CVE-2026-42269

high

Description

countly-server is the server-side part of Countly, a product analytics solution. Prior to 24.05.50 and 25.03.44, the authenticated data-migration deletion route in plugins/data_migration/api/api.js passes the user-controlled exportid to clean_up_data without path validation. plugins/data_migration/api/data_migration_helper.js concatenates that identifier into a path resolved outside the intended import directory and calls remove recursively, allowing an application administrator or user with migration permission to delete writable files or directory trees and cause data loss or service disruption. This issue is fixed in versions 24.05.50 and 25.03.44.

References

https://github.com/Countly/countly-server/security/advisories/GHSA-5pmc-54j6-jcgq

https://github.com/Countly/countly-server/releases/tag/25.03.44

https://github.com/Countly/countly-server/releases/tag/24.05.50

https://github.com/Countly/countly-server/commit/b652ee8dafa91602705004d0edb602a91a0d845e

https://github.com/Countly/countly-server/commit/764e2a1d86f9af600113f77422d520338c214229

https://github.com/Countly/countly-server/blob/master/CHANGELOG.md#version-250344

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-102915

Details

Source: Mitre, NVD

Published: 2026-10-16

Updated: 2026-10-16

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Severity: High

EPSS

EPSS: 0.00469