VULNERABILITY INTELLIGENCE
CVE-2026-21393
CVSS score5.4 MEDIUM
EPSS probability0.24%
CISA KEVNot currently listed
Published2026-02-04
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Description
Movable Type contains a stored cross-site scripting vulnerability in Edit Comment. If crafted input is stored by an attacker, arbitrary script may be executed on a logged-in user's web browser. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well.
Weakness classification
- vultures@jpcert.or.jp: CWE-79