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CVE-2021-20664

MEDIUM
6.1
CVSS Score
Published: March 5, 2021 at 09:20 AM UTC
Updated: June 17, 2026 at 03:34 AM UTC
5 products affected across 2 vendorsMovable Type AdvancedMovabletypeMovable Type Premium Advanced

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.8%

Description

Cross-site scripting vulnerability in in Asset registration 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN66542874/index.html
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://movabletype.org/news/2021/02/mt-760-676-released.html

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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