What is CVE-2022-24307?

CVE-2022-24307 is a critical-severity vulnerability in Joinmastodon Mastodon, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2022-02-03.

How severe is CVE-2022-24307?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Joinmastodon Mastodon

CVE-2022-24307

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.)

Vulnerability class: Broken Access Control

EPSS: 0.014 (70.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Joinmastodon Mastodon
N/a — versions n/a

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory, Release Notes)
cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory, Release Notes)

Frequently asked questions

What is CVE-2022-24307?: CVE-2022-24307 is a critical-severity vulnerability in Joinmastodon Mastodon, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2022-02-03.
How severe is CVE-2022-24307?: Critical severity. CVSS v3 base score is 9.8 out of 10.