pyLoad up to 0.5.0b3.dev101 Session Management webui/app/helpers.py Api.set_user_permission/Api.change_password improper authorization

Summaryinfo

A vulnerability labeled as problematic has been found in pyLoad. Impacted is the function Api.set_user_permission/Api.change_password of the file webui/app/helpers.py of the component Session Management. Such manipulation leads to improper authorization. This vulnerability is traded as CVE-2026-123813. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in pyLoad. It has been rated as problematic. Affected by this issue is the function Api.set_user_permission/Api.change_password of the file webui/app/helpers.py of the component Session Management. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev102, pyLoad does not invalidate existing Flask sessions when an administrator changes a user's permissions or password through /api/set_user_permission or /api/change_password. Api.set_user_permission and Api.change_password update the database, but session authorization continues to use role and permission values copied at login by set_session in webui/app/helpers.py. A user can therefore retain revoked privileges or continue using a session established with an old password for the configured session lifetime. API-key authentication is not affected because that path rereads user data from the database. This issue is fixed in version 0.5.0b3.dev102.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-123813 since 11/06/2026. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are needed for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 0.5.0b3.dev102 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• pyLoad

Version

• 0.5.0b3.dev31
• 0.5.0b3.dev32
• 0.5.0b3.dev33
• 0.5.0b3.dev36
• 0.5.0b3.dev40
• 0.5.0b3.dev41
• 0.5.0b3.dev42
• 0.5.0b3.dev44
• 0.5.0b3.dev75
• 0.5.0b3.dev77
• 0.5.0b3.dev78
• 0.5.0b3.dev79
• 0.5.0b3.dev87
• 0.5.0b3.dev88
• 0.5.0b3.dev89
• 0.5.0b3.dev90
• 0.5.0b3.dev91
• 0.5.0b3.dev92
• 0.5.0b3.dev97
• 0.5.0b3.dev98
• 0.5.0b3.dev100
• 0.5.0b3.dev101

Website

• Product: https://github.com/pyload/pyload/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion