CVE-2023-24810 Cross site scripting (XSS) vulnerability using authentication callback in Misskey

High 7.1 Published Updated

Attackers can execute arbitrary JavaScript via malicious redirect URLs during authentication, potentially compromising user accounts.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-24810?

CVE-2023-24810 is a high-severity cross-site scripting vulnerability in misskey-dev misskey, published on 22 Feb 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2023-24810?

It affects 1 product.

Products include Misskey Misskey.

How do I fix CVE-2023-24810?

No fix has been published for CVE-2023-24810 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-24810 being exploited?

There is no known exploitation of CVE-2023-24810 in the wild and no public exploit code.

Sources

Also known as GHSA-cc6r-chgr-8r5m.

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