Cyber Resilience

CVE-2023-42451

High

Published: 19 September 2023

Published
19 September 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0031 54.8th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-42451 is a high-severity Use of Incorrectly-Resolved Name or Reference (CWE-706) vulnerability in Joinmastodon Mastodon. Its CVSS base score is 7.4 (High).

Operationally, ranked in the top 45.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2, under certain circumstances, attackers can exploit a flaw in domain name normalization to spoof domains they do not own. Versions 3.5.14,…

more

4.0.10, 4.1.8, and 4.2.0-rc2 contain a patch for this issue.

CWE(s)
CWE-706

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

joinmastodon
mastodon
4.2.0 · ≤ 3.5.14 · 4.0.0 — 4.0.10 · 4.1.0 — 4.1.8

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References