XSS in Movabletype Movable Type
CVE-2021-20665
Cross-site scripting vulnerability in in Add asset screen of Contents field 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 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 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-2021-20665?
- CVE-2021-20665 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-2021-20665?
- Medium severity. CVSS v3 base score is 6.1 out of 10.