Improper input validation in Misskey
CVE-2024-52593
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.8% 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 — versions 2024.11.0
- Misskey-Dev Misskey — versions >= 12.29.0, < 2024.11.0-alpha.3
Weakness classification (CWE)
References
- github.com/misskey-dev/misskey/security/advisories/GHSA-675w-hf2m-qwmj (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-52593?
- CVE-2024-52593 is a medium-severity vulnerability in Misskey, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2024-12-18.
- How severe is CVE-2024-52593?
- Medium severity. CVSS v3 base score is 5.3 out of 10.