CVE-2023-49079

Misskey vulnerability

9.3 CRITICALEPSS 0.40%

Published29 Nov 2023

Description

Misskey is an open source, decentralized social media platform. Misskey's missing signature validation allows arbitrary users to impersonate any remote user. This issue has been patched in version 2023.11.1-beta.1.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeChanged

ConfidentialityLow

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N

Affected products

Misskey< 2023.11.1

Remediation

Fixed in

Misskey≥ 2023.11.1

Frequently asked

Is CVE-2023-49079 being actively exploited?

CVE-2023-49079 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.40%.

How severe is CVE-2023-49079?

CVE-2023-49079 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.40% probability of exploitation.

Which products are affected by CVE-2023-49079?

Affected products include Misskey.

How do I fix CVE-2023-49079?

Upgrade affected software to a fixed version, for example Misskey 2023.11.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-49079 against the real software inventory on every managed device, every day. 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.

See how prioritisation works Book a demo

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