CVE-2023-24811 Cross site scripting (XSS) vulnerability using url preview in Misskey
Attackers can execute arbitrary JavaScript via malicious URLs in Misskey's URL preview feature, potentially compromising user sessions.
- 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-2023-24811?
CVE-2023-24811 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. 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.
Weakness: CWE-79
Which versions are affected by CVE-2023-24811?
It affects 1 product.
Products include Misskey Misskey.
How do I fix CVE-2023-24811?
No fix has been published for CVE-2023-24811 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-2023-24811 being exploited?
There is no known exploitation of CVE-2023-24811 in the wild and no public exploit code.
Other vulnerabilities in misskey-dev misskey
- CVE-2025-25306 Misskey's Incomplete Patch of CVE-2024-52591 Leads to Forgery of Federated Notes
- CVE-2023-49079 Misskey's missing signature validation allows arbitrary users to impersonate any remote user.
- CVE-2026-28431 Misskey lacks proper authorization checks and input validation
- CVE-2023-52139 Misskey vulnerable to improper authorization when accessing with third-party application
- CVE-2024-52590 Missing validation allows spoofed profiles in Misskey
Sources
Also known as GHSA-vc39-c453-67g3.