CVE-2024-52593 Missing validation allows spoofed "origin" links in Misskey

Medium 5.1 Published Updated

Attackers can spoof origin links in Misskey to redirect users to malicious sites, enabling phishing attacks against remote users.

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-2024-52593?

CVE-2024-52593 is a medium-severity vulnerability in misskey-dev misskey, published on 18 Dec 2024. 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, federated social media platform.In affected versions missing validation in `NoteCreateService.insertNote`, `ApPersonService.createPerson`, and `ApPersonService.updatePerson` allows an attacker to control the target of any "origin" links (such as the "view on remote instance" banner). Any HTTPS URL can be set, even if it belongs to a different domain than the note / user. Vulnerable Misskey instances will use the unverified URL for several clickable links, allowing an attacker to conduct phishing or other attacks against remote users. This issue has been addressed in version 2024.11.0-alpha.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-20

Which versions are affected by CVE-2024-52593?

It affects 1 product.

Products include Misskey Misskey.

How do I fix CVE-2024-52593?

No fix has been published for CVE-2024-52593 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-52593 being exploited?

There is no known exploitation of CVE-2024-52593 in the wild and no public exploit code.

Sources

Also known as GHSA-675w-hf2m-qwmj.

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