CVE-2021-20727

medium

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.

References

Advisories
More

https://jvn.jp/en/jp/JVN98239374/index.html

https://github.com/Zettlr/Zettlr

https://www.zettlr.com/

Details

Source: Mitre, NVD

Published: 2021-05-27

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N