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TI-2020-04634 Aliases CVE-2020-5669GHSA-3x6m-pmx9-j7f5

Cross-site scripting in Six Apart Ltd. Movable Type

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Cross-site scripting vulnerability in Movable Type Movable Type Premium 1.37 and earlier and Movable Type Premium Advanced 1.37 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

Why it matters now

EPSS 0.00605 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Six Apart Ltd.Movable TypeMovable Type Premium 1.37 and earlier and Movable Type Premium Advanced 1.37 and earlier—No fix listedCNA
  • Movable Type VendorSix Apart Ltd. Affected Movable Type Premium 1.37 and earlier and Movable Type Premium Advanced 1.37 and earlier Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:*up to 1.37VulnerableSixapart
cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*up to 1.37VulnerableSixapart
  • cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:* Versions up to 1.37 Vulnerable ·Sixapart
  • cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:* Versions up to 1.37 Vulnerable ·Sixapart

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-5669
  2. 2026-10-03 Alias added: GHSA-3x6m-pmx9-j7f5

References

Advisory 2

  • TI-2021-04052 OS command injection in Six Apart Ltd. Movable Type CVSS 3.1CRITICAL 9.8
  • TI-2026-20843 Code injection in Six Apart Ltd. Movable Type CVSS 4.0CRITICAL 9.3
  • TI-2026-69104 Code injection in Movable Type upgrade script CVSS 4.0CRITICAL 9.3
  • TI-2022-17791 Code injection in Six Apart Ltd. Movable Type XMLRPC API CVSS 3.1CRITICAL 9.8
  • TI-2026-69105 SQL injection in Movable Type Site Search function CVSS 4.0HIGH 8.8
  • TI-2020-04547 Unrestricted file upload in Six Apart Ltd. Movable Type CVSS 3.1HIGH 8.8
See all 53 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences