VYPR
← All advisories
Medium severity6.1NVD Advisory· Published Mar 5, 2021· Updated Jun 17, 2026

CVE-2021-20663

CVE-2021-20663

Description

Cross-site scripting vulnerability in in Role authority setting 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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

8
  • Movabletype/Movabletype2 versions
    cpe:2.3:a:movabletype:movable_type:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:movabletype:movable_type:*:*:*:*:*:*:*:*range: <=6.7.5
    • (no CPE)range: <=7 r.4705, <=7 Series, <=6.7.5, <=6.7 Series, <=1.39, <=1.39
  • Movabletype/Movable Type Advanced2 versions
    cpe:2.3:a:movabletype:movable_type_advanced:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:movabletype:movable_type_advanced:*:*:*:*:*:*:*:*range: <=7.4705
    • (no CPE)range: <=7 r.4705, <=7 Series
  • Movabletype/Movable Type Premium2 versions
    cpe:2.3:a:movabletype:movable_type_premium:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:movabletype:movable_type_premium:*:*:*:*:*:*:*:*range: <=1.39
    • (no CPE)range: <=1.39
  • Movabletype/Movable Type Premium Advanced
    cpe:2.3:a:movabletype:movable_type_premium_advanced:*:*:*:*:*:*:*:*
    Range: <=1.39
  • Six Apart Ltd./Movable Typev5
    Range: 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

Patches

Vulnerability mechanics

References

2

News mentions

0

No linked articles in our index yet.