Prototype Pollution in Joinmastodon Mastodon

CVE-2022-0432

Prototype Pollution in GitHub repository mastodon/mastodon prior to 3.5.0.

Vulnerability class: Prototype Pollution

EPSS: 0.040 (89.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-0432?
CVE-2022-0432 is a medium-severity vulnerability in Joinmastodon Mastodon, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 6.1/10. Published 2022-02-02.
How severe is CVE-2022-0432?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2022-0432 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.