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3 vulnerabilities by zettlr
CVE-2022-40276 (GCVE-0-2022-40276)
Vulnerability from cvelistv5 – Published: 2022-11-03 00:00 – Updated: 2025-05-02 20:10
VLAI
Summary
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.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Insecure or unset HTTP headers - Content-Security-Policy
- CWE-20 - Improper Input Validation
Assigner
References
2 references
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CVE-2021-26835 (GCVE-0-2021-26835)
Vulnerability from cvelistv5 – Published: 2021-06-18 11:46 – Updated: 2024-08-03 20:33
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Zettlr/Zettlr/issues/1716 | x_refsource_MISC |
| https://github.com/Zettlr/Zettlr/releases/tag/v1.8.9 | x_refsource_MISC |
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CVE-2021-20727 (GCVE-0-2021-20727)
Vulnerability from cvelistv5 – Published: 2021-05-27 08:05 – Updated: 2024-08-03 17:53
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
- Cross-site scripting
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.zettlr.com/ | x_refsource_MISC |
| https://github.com/Zettlr/Zettlr | x_refsource_MISC |
| https://jvn.jp/en/jp/JVN98239374/index.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Hendrik Erz | Zettlr |
Affected:
from 0.20.0 to 1.8.8
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