CVE-2023-36462

Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 2.6.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, an attacker can craft a verified profile link using specific formatting to conceal arbitrary parts of the link, enabling it to appear to link to a different URL altogether. The link is visually misleading, but clicking on it will reveal the actual link. This can still be used for phishing, though, similar to IDN homograph attacks. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/mastodon/mastodon/commit/610731b03dfcadd887078cb0399f4e514aa1931c	Patch
https://github.com/mastodon/mastodon/releases/tag/v3.5.9	Release Notes
https://github.com/mastodon/mastodon/releases/tag/v4.0.5	Release Notes
https://github.com/mastodon/mastodon/releases/tag/v4.1.3	Release Notes
https://github.com/mastodon/mastodon/security/advisories/GHSA-55j9-c3mp-6fcq	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:joinmastodon:mastodon::::::::
	cpe:2.3:a:joinmastodon:mastodon::::::::
	cpe:2.3:a:joinmastodon:mastodon::::::::

History

No history.

Information

Published : 2023-07-06 20:15

Updated : 2023-07-13 19:27

NVD link : CVE-2023-36462

Mitre link : CVE-2023-36462

CVE.ORG link : CVE-2023-36462

JSON object : View

Products Affected

joinmastodon

mastodon

CWE

NVD-CWE-noinfo CWE-20

Improper Input Validation

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