Vulnerability Details : 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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-20727
- cpe:2.3:a:zettlr:zettlr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20727
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20727
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2021-20727
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20727
-
https://github.com/Zettlr/Zettlr
GitHub - Zettlr/Zettlr: A Markdown Editor for the 21st century.Third Party Advisory
-
https://jvn.jp/en/jp/JVN98239374/index.html
JVN#98239374: Zettlr vulnerable to cross-site scriptingThird Party Advisory
-
https://www.zettlr.com/
A Markdown Editor for the 21st Century | ZettlrProduct
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