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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/misskey-dev/misskey/security/advisories/GHSA-vc39-c453-67g3
Scores
CVSS v3
7.1
EPSS
0.0054
EPSS Percentile
67.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (1)
misskey/misskey
< 13.3.2
Published
Feb 22, 2023
Tracked Since
Feb 18, 2026