VULNERABILITY INTELLIGENCE

CVE-2021-20808

CVSS score6.1 MEDIUM

EPSS probability0.90%

CISA KEVNot currently listed

Published2021-08-26

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

Cross-site scripting vulnerability in Search screen of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.44 and earlier, and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

Weakness classification

nvd@nist.gov: CWE-79

Primary references

vultures@jpcert.or.jp — Third Party Advisory
vultures@jpcert.or.jp — Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory