CVE-2021-26835

PoC —

CVSS 3.1

6.1 medium

EPSS

1%p69

Published

Jun 18, 2021 (Jun 18, 2021)

Modified

Jun 17, 2026

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.

Vendors: zettlr
Products: zettlr
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (1.3%)

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