CVE-2023-36462
Assigner: GitHub_M
Published: 2023-07-06T19:16:37.617Z
State: PUBLISHED
title: Mastodon's verified profile links can be formatted in a misleading way
problemTypes: descriptions: cweId: CWE-20
description: CWE-20: Improper Input Validation
type: CWE
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.4
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
version: 3.1
affected: vendor: mastodon
product: mastodon
versions: version: >= 2.6.0, < 3.5.9
status: affected
version: >= 4.0.0, < 4.0.5
status: affected
version: >= 4.1.0, < 4.1.3
status: affected
descriptions: value: 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.
source: advisory: GHSA-55j9-c3mp-6fcq
discovery: UNKNOWN