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CVE-2024-32983

Misskey broken access control

8.2 HIGHPublic exploitEPSS 0.40%
  1. Published3 Jun 2024

Description

Misskey is an open source, decentralized microblogging platform. Misskey doesn't perform proper normalization on the JSON structures of incoming signed ActivityPub activity objects before processing them, allowing threat actors to spoof the contents of signed activities and impersonate the authors of the original activities. This vulnerability is fixed in 2024.5.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Affected products

Misskey< 2024.5.0

Remediation

Fixed in
Misskey≥ 2024.5.0

References

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Frequently asked

Is CVE-2024-32983 being actively exploited?

CVE-2024-32983 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.40%.

How severe is CVE-2024-32983?

CVE-2024-32983 has a CVSS 3.1 base score of 8.2, rated high. EPSS estimates a 0.40% probability of exploitation.

Which products are affected by CVE-2024-32983?

Affected products include Misskey.

How do I fix CVE-2024-32983?

Upgrade affected software to a fixed version, for example Misskey 2024.5.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-32983 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.