CVE-2023-24811

Cross site scripting (XSS) vulnerability using url preview in Misskey

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.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.17%
Vendor Advisory github.com
Affected: misskey-dev misskey
Published at:
Updated at:

References

Link Tags
https://github.com/misskey-dev/misskey/security/advisories/GHSA-vc39-c453-67g3 vendor advisory
https://github.com/misskey-dev/misskey/commit/38f9d1e76428bea47c5944c440eab25428c7d99e patch

Frequently Asked Questions

What is the severity of CVE-2023-24811?
CVE-2023-24811 has been scored as a high severity vulnerability.
How to fix CVE-2023-24811?
To fix CVE-2023-24811, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-24811 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-24811 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-24811?
CVE-2023-24811 affects misskey-dev misskey.
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