Aggregates CVE and security vulnerability intelligence across all zettlr-related products, including CVSS, EPSS, publication dates, and vulnerability intelligence data.
Historical issues mainly involve vendor risk cross-site scripting and vendor risk input validation and related security problems, affecting vendor surface software deployment and vendor surface production workloads scenarios.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2022-40276 | Zettlr version 2.3.0 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Zettlr. This is possible because the application does not have a CSP policy (or at least not strict enough) and/or does not properly validate the contents of markdown files before rendering them. | [email protected] | 5.5 | 0.14% | 2022-11-03 | 2025-05-02 |
| CVE-2021-26835 | 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. | [email protected] | 6.1 | 0.82% | 2021-06-18 | 2024-11-21 |
| 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. | [email protected] | 6.1 | 0.30% | 2021-05-27 | 2024-11-21 |