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CVE-2021-20665

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 Add asset screen of Contents field 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 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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