XSS in Movabletype Movable Type
CVE-2021-20664
Cross-site scripting vulnerability in in Asset registration screen of Movable Type 7 r.4705 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4705 and earlier (Movable Type Advanced 7 Series), Movable Type 6.7.5 and earlier (Movable Type 6.7 Series), Movable Type Premium 1.39 and earlier, and Movable Type Premium Advanced 1.39 and earlier allows remote attackers to inject an arbitrary script via unspecified vectors.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.008 (53.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Movabletype Movable_type
- Movabletype Movable_type_advanced
- Movabletype Movable_type_premium
- Movabletype Movable_type_premium_advanced
- Six Apart Ltd. Movable Type — versions Movable Type 7 r.4705 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4705 and earlier (Movable Type Advanced 7 Series), Movable Type 6.7.5 and earlier (Movable Type 6.7 Series), Movable Type Premium 1.39 and earlier, and Movable Type Premium Advanced 1.39 and earlier
Weakness classification (CWE)
References
- vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
- vultures@jpcert.or.jp (x_refsource_MISC, Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20664?
- CVE-2021-20664 is a medium-severity vulnerability in Movabletype Movable Type, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-03-05.
- How severe is CVE-2021-20664?
- Medium severity. CVSS v3 base score is 6.1 out of 10.