Medium severity6.1NVD Advisory· Published Aug 26, 2021· Updated Jun 17, 2026
CVE-2021-20814
CVE-2021-20814
Description
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 Series), and Movable Type Premium 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*+ 3 more
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*range: >=7.0,<7.8.0
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*range: >=7.0,<7.8.0
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:*range: <=1.44
- (no CPE)range: <=r.4903, <=1.44
- Range: <=r.4903, <=1.44
- Six Apart Ltd./Movable Typev5Range: 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
Patches
Vulnerability mechanics
References
2- jvn.jp/en/jp/JVN97545738/index.htmlnvdThird Party Advisory
- movabletype.org/news/2021/08/mt-780-681-released.htmlnvdRelease NotesVendor Advisory
News mentions
0No linked articles in our index yet.