VULNERABILITY INTELLIGENCE

CVE-2023-36462

CVSS score5.4 MEDIUM
EPSS probability0.62%
CISA KEVNot currently listed
Published2023-07-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-20
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references