๐Ÿ›ก๏ธ CVE-2026-39843
๐ŸŸ  CVSS 7.7 โ€” High โš ๏ธ Exploit Public CWE-918 NVD
7.7
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Plane is an an open-source project management tool. From 0.28.0 to before 1.3.0, the remediation of GHSA-jcc6-f9v6-f7jw is incomplete which could lead to the same full read Server-Side Request Forgery when a normal html page contains a link tag with an href that redirects to a private IP address is supplied to Add link by an authenticated attacker with low privileges. Redirects for the main page URL are validated, but not the favicon fetch path. fetch_and_encode_favicon() still uses requests.get(favicon_url, ...) with the default redirect-following. This vulnerability is fixed in 1.3.0.

Details

Severity HIGH
CVSS Score 7.7
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE CWE-918
Public Exploit โš ๏ธ Yes
Source NVD
Published 2026-04-09
Updated 2026-06-02
Modified 2026-04-17
Fix URL N/A

Affected Packages

Software From version Fixed in
plane 0.28.0 1.3.0

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