CVEvulnerability

CVE-2023-36462

5.4 MEDIUM Published 2023-07-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-07-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weaknesses
CWE-20

Description

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.

Affected configurations

• joinmastodon mastodon (>= 2.6.0 < 3.5.9) • joinmastodon mastodon (>= 4.0.0 < 4.0.5) • joinmastodon mastodon (>= 4.1.0 < 4.1.3)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References