CVE-2023-36460
high-risk
Published 2023-07-06
Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 3.5.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, attackers using carefully crafted media files can cause Mastodon's media processing code to create arbitrary files at any location. This allows attackers to create and overwrite any file Mastodon has access to, allowing Denial of Service and arbitrary Remote Code Execution. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.
Do I need to act?
!
37.2% chance of exploitation in next 30 days
EPSS score — higher than 63% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: b10c974ba1952c545acff505bfd36feb0c60b000, 8d7f6550f91338fb69e5c6e0cd28653122784665, 0d5781ca7609590a6d5340bb685bb1804056bb46, b10c974ba1952c545acff505bfd36feb0c60b000, 8d7f6550f91338fb69e5c6e0cd28653122784665, 0d5781ca7609590a6d5340bb685bb1804056bb46
9
CVSS 9.9/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (12)
Third Party Advisory
https://github.com/mastodon/mastodon/releases/tag/v3.5.9
Third Party Advisory
https://github.com/mastodon/mastodon/releases/tag/v4.0.5
Third Party Advisory
https://github.com/mastodon/mastodon/releases/tag/v4.1.3
Third Party Advisory
https://github.com/mastodon/mastodon/security/advisories/GHSA-9928-3cp5-93fm
Third Party Advisory
https://github.com/mastodon/mastodon/releases/tag/v3.5.9
Third Party Advisory
https://github.com/mastodon/mastodon/releases/tag/v4.0.5
Third Party Advisory
https://github.com/mastodon/mastodon/releases/tag/v4.1.3
Third Party Advisory
https://github.com/mastodon/mastodon/security/advisories/GHSA-9928-3cp5-93fm
54
/ 100
high-risk
Severity
33/34 · Critical
Exploitability
16/34 · Moderate
Exposure
5/34 · Minimal