CVE-2021-20727

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-20727
Cross-site scripting vulnerability in Zettlr from 0.20.0 to 1.8.8 allows an attacker to execute an arbitrary script by loading a file or code snippet containing an invalid iframe into Zettlr.

6.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://github.com/Zettlr/Zettlr Third Party Advisory
https://jvn.jp/en/jp/JVN98239374/index.html Third Party Advisory
https://www.zettlr.com/ Product
Configurations

Configuration 1 (hide)

cpe:2.3:a:zettlr:zettlr:*:*:*:*:*:*:*:*
History

01 Jun 2021, 21:31

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 6.1
CPE cpe:2.3:a:zettlr:zettlr:*:*:*:*:*:*:*:*
CWE CWE-79
References (MISC) https://www.zettlr.com/ - (MISC) https://www.zettlr.com/ - Product
References (MISC) https://jvn.jp/en/jp/JVN98239374/index.html - (MISC) https://jvn.jp/en/jp/JVN98239374/index.html - Third Party Advisory
References (MISC) https://github.com/Zettlr/Zettlr - (MISC) https://github.com/Zettlr/Zettlr - Third Party Advisory

27 May 2021, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-05-27 09:15

Updated : 2024-02-04 21:47

NVD link : CVE-2021-20727

Mitre link : CVE-2021-20727

CVE.ORG link : CVE-2021-20727

JSON object : View

Products Affected

zettlr

  • zettlr
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')