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VULNERABILITIES

CVE-2021-20727 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/Zettlr/Zettlr CVEThird Party Advisory
https://jvn.jp/en/jp/JVN98239374/index.html CVEThird Party Advisory
https://www.zettlr.com/ CVEProduct
https://github.com/Zettlr/Zettlr [email protected]Third Party Advisory
https://jvn.jp/en/jp/JVN98239374/index.html [email protected]Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]

Affected Products

ProductVersions
zettlr zettlr
>= 0.20.0, <= 1.8.8

CPE

  • cpe:2.3:a:zettlr:zettlr:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-20727
NVD Published Date:
May 27, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-20727 Details - Not Deferred