Vulnerability 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.
CVSS Score
6.1
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zettlr | Zettlr | >= 0.20.0, <= 1.8.8 |
Related Weaknesses (CWE)
References
- https://github.com/Zettlr/ZettlrThird Party Advisory
- https://jvn.jp/en/jp/JVN98239374/index.htmlThird Party Advisory
- https://www.zettlr.com/Product
- https://github.com/Zettlr/ZettlrThird Party Advisory
- https://jvn.jp/en/jp/JVN98239374/index.htmlThird Party Advisory
- https://www.zettlr.com/Product
FAQ
What is CVE-2021-20727?
CVE-2021-20727 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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.
How severe is CVE-2021-20727?
CVE-2021-20727 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-20727?
Check the references section above for vendor advisories and patch information. Affected products include: Zettlr Zettlr.