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CVE-2024-23832

Joinmastodon Mastodon vulnerability

9.4 CRITICALEPSS 2.45%
  1. Published1 Feb 2024

Description

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5.

CVSS 3.1 breakdown

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

Affected products

Joinmastodon Mastodon≥ 4.0.0 < 4.0.13 · ≥ 4.1.0 < 4.1.13 · ≥ 4.2.0 < 4.2.5 · < 3.5.17

Remediation

Fixed in
Joinmastodon Mastodon≥ 4.0.13

Frequently asked

Is CVE-2024-23832 being actively exploited?

CVE-2024-23832 is not in the CISA KEV catalog. Its EPSS exploit probability is 2.45%.

How severe is CVE-2024-23832?

CVE-2024-23832 has a CVSS 3.1 base score of 9.4, rated critical. EPSS estimates a 2.45% probability of exploitation.

Which products are affected by CVE-2024-23832?

Affected products include Joinmastodon Mastodon.

How do I fix CVE-2024-23832?

Upgrade affected software to a fixed version, for example Joinmastodon Mastodon 4.0.13 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-23832 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.

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