SB2023012021 - Multiple vulnerabilities in Flarum

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Improper access control (CVE-ID: CVE-2023-22487)

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can bypass implemented security restrictions and read any post on the forum.

2) Missing Authorization (CVE-ID: CVE-2023-22488)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to missing authorization in the notification-sending component. A remote user can obtain sensitive information from notifications.

Remediation

Install update from vendor's website.

References

• https://github.com/flarum/framework/commit/ab1c868b978e8b0d09a5d682c54665dae17d0985
• https://github.com/flarum/framework/security/advisories/GHSA-22m9-m3ww-53h3
• https://github.com/flarum/framework/commit/d0a2b95dca57d3dae9a0d77b610b1cb1d0b1766a
• https://github.com/flarum/framework/security/advisories/GHSA-8gcg-vwmw-rxj4