AUGUST 4, 2026
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Case File

CVE-2026-21393

MEDIUM · CVSS 5.4 EPSS 0.21%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-02-04 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.4. See the original NVD description below for full technical details.

CVE
CVE-2026-21393
Severity
MEDIUM
CVSS
5.4
EPSS
0.21%

Original NVD 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.