CVE-2021-20727

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.30%
Third-Party Advisory github.com Third-Party Advisory jvn.jp
Affected: Hendrik Erz Zettlr
Published at:
Updated at:

References

Link Tags
https://www.zettlr.com/ product
https://github.com/Zettlr/Zettlr third party advisory
https://jvn.jp/en/jp/JVN98239374/index.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-20727?
CVE-2021-20727 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20727?
To fix CVE-2021-20727, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20727 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20727 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20727?
CVE-2021-20727 affects Hendrik Erz Zettlr.
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