What is CVE-2023-24810?

CVE-2023-24810 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-2023-24810?

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

XSS in Misskey

CVE-2023-24810

Misskey is an open source, decentralized social media platform. Due to insufficient validation of the redirect URL during `miauth` authentication in Misskey, arbitrary JavaScript can be executed when a user allows the link. All versions below 13.3.1 (including 12.x) are affected. This has been fixed in version 13.3.1. Users are advised to upgrade. Users unable to upgrade should not allow authentication of untrusted apps.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-02-22 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.004 (36.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Misskey
Misskey-Dev Misskey — versions < 13.3.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/misskey-dev/misskey/security/advisories/GHSA-cc6r-chgr-8r5m (Vendor Advisory)

Frequently asked questions

What is CVE-2023-24810?: CVE-2023-24810 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-2023-24810?: High severity. CVSS v3 base score is 7.1 out of 10.