XSS in Sixapart Movable_type
CVE-2021-20814
Cross-site scripting vulnerability in Setting screen of ContentType Information Widget Plugin of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 S…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.009 (55.8th 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
- Sixapart Movable_type
- Six Apart Ltd. Movable Type — versions Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), and Movable Type Premium 1.44 and earlier
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vultures@jpcert.or.jp (x_refsource_MISC, Release Notes, Vendor Advisory)
- vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-20814?
- CVE-2021-20814 is a medium-severity vulnerability in Sixapart Movable_type, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-08-26.
- How severe is CVE-2021-20814?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-20814 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.