CVE-2022-24307

moderate-risk

Published 2022-02-03

Mastodon before 3.3.2 and 3.4.x before 3.4.6 has incorrect access control because it does not compact incoming signed JSON-LD activities. (JSON-LD signing has been supported since version 1.6.0.)

Do I need to act?

0.37% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Fix available

Upgrade to: 637c7d464b2876765370d1143b7ba6441efb730b, 93a6c143af894d478a282b96a8b8e826efd1f43a, 637c7d464b2876765370d1143b7ba6441efb730b, 93a6c143af894d478a282b96a8b8e826efd1f43a

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (1)

Mastodon

Affected Vendors

Joinmastodon

References (4)

Release Notes https://github.com/mastodon/mastodon/releases/tag/v3.3.2

Release Notes https://github.com/mastodon/mastodon/releases/tag/v3.4.6

Release Notes https://github.com/mastodon/mastodon/releases/tag/v3.3.2

Release Notes https://github.com/mastodon/mastodon/releases/tag/v3.4.6

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal