Is CVE-2026-28433 actively exploited?

No active exploitation of CVE-2026-28433 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-28433 be exploited remotely?

Yes. CVE-2026-28433 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-28433?

CVE-2026-28433 has a CVSS score of 4.3 (MEDIUM).

HOME VULNERABILITIESCVE-2026-28433

MEDIUM

CVE-2026-28433

CWE-639Published: March 10, 2026· Updated: Mar 13, 2026

4.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.3th

Official Description

Misskey is an open source, federated social media platform. All Misskey servers running versions 10.93.0 and later, but prior to 2026.3.1, contain a vulnerability that allows importing other users' data due to lack of ownership validation. The impact of this vulnerability is estimated to be relatively low, as bad actors would require the ID corresponding to the target file for import. This vulnerability is fixed in 2026.3.1.

NVD Source

Technical Analysis

CVE-2026-28433 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.