What is CVE-2023-24811?

CVE-2023-24811 is a high-severity vulnerability in Misskey, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2023-02-22.

How severe is CVE-2023-24811?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Misskey

CVE-2023-24811

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (33.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Misskey
Misskey-dev Misskey — versions < 13.3.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2023-24811?: CVE-2023-24811 is a high-severity vulnerability in Misskey, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2023-02-22.
How severe is CVE-2023-24811?: High severity. CVSS v3 base score is 7.1 out of 10.