CVE-2021-4170

Public Exploit
Cross-site Scripting (XSS) - Stored in janeczku/calibre-web

Description

calibre-web is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.27%
Third-Party Advisory github.com Third-Party Advisory huntr.dev
Affected: janeczku janeczku/calibre-web
Published at:
Updated at:

References

Link Tags
https://huntr.dev/bounties/ff395101-e392-401d-ab4f-579c63fbf6a0 third party advisory exploit
https://github.com/janeczku/calibre-web/commit/7ad419dc8c12180e842a82118f4866ac3d074bc5 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-4170?
CVE-2021-4170 has been scored as a medium severity vulnerability.
How to fix CVE-2021-4170?
To fix CVE-2021-4170, 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-2021-4170 being actively exploited in the wild?
It is possible that CVE-2021-4170 is being exploited or will be exploited in a near future based on public information. 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-2021-4170?
CVE-2021-4170 affects janeczku janeczku/calibre-web.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.