CVE-2021-26835

medium

Description

No filtering of cross-site scripting (XSS) payloads in the markdown-editor in Zettlr 1.8.7 allows attackers to perform remote code execution via a crafted file.

References

https://github.com/Zettlr/Zettlr/releases/tag/v1.8.9

https://github.com/Zettlr/Zettlr/issues/1716

Details

Source: Mitre, NVD

Published: 2021-06-18

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