Vulnerability · Published Feb 22, 2023 · Assigned by GitHub_M
CVE-2023-24811Cross site scripting (XSS) vulnerability using url preview in Misskey
High 7.1
In plain English
A high-severity cross-site scripting in misskey from misskey-dev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Official description
Misskey is an open source, decentralized social media platform. In versions prior to 13.3.2 the URL preview function is subject to a cross site scripting vulnerability due to insufficient URL validation. Arbitrary JavaScript is executed when a malicious URL is loaded in the `View in Player` or `View in Window` preview. This has been fixed in version 13.3.2. Users are advised to upgrade. Users unable to upgrade should avoid usage of the `View in Player` or `View in Window` functions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| misskey-dev | misskey | < 13.3.2 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L