CVE-2023-25154 Information

Description

Misskey is an open source decentralized social media platform. In versions prior to 13.5.0 the link to the instance to the sender that appears when viewing a user or note received through ActivityPub is not properly validated so by inserting a URL with a javascript scheme an attacker may execute JavaScript code in the context of the recipient. This issue has been fixed in version 13.5.0. Users are advised to upgrade. Users unable to upgrade should not iew on remote\ for untrusted instances.

Reference

https://github.com/misskey-dev/misskey/security/advisories/GHSA-pfp5-r48x-fg25