CVE-2019-18347

Public Exploit

Description

A stored XSS issue was discovered in DAViCal through 1.1.8. It does not adequately sanitize output of various fields that can be set by unprivileged users, making it possible for JavaScript stored in those fields to be executed by another (possibly privileged) user. Affected database fields include Username, Display Name, and Email.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.75% Top 30%
Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.davical.org/ product
https://gitlab.com/davical-project/davical/blob/master/ChangeLog third party advisory release notes
https://hackdefense.com/publications/cve-2019-18347-davical-caldav-server-vulnerability/ third party advisory exploit
http://seclists.org/fulldisclosure/2019/Dec/17 third party advisory mailing list
http://seclists.org/fulldisclosure/2019/Dec/19 third party advisory mailing list
http://seclists.org/fulldisclosure/2019/Dec/18 third party advisory mailing list
http://packetstormsecurity.com/files/155628/DAViCal-CalDAV-Server-1.1.8-Persistent-Cross-Site-Scripting.html third party advisory
https://lists.debian.org/debian-lts-announce/2019/12/msg00016.html mailing list
https://www.debian.org/security/2019/dsa-4582 vendor advisory
https://seclists.org/bugtraq/2019/Dec/30 mailing list

Frequently Asked Questions

What is the severity of CVE-2019-18347?
CVE-2019-18347 has been scored as a medium severity vulnerability.
How to fix CVE-2019-18347?
To fix CVE-2019-18347, 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-2019-18347 being actively exploited in the wild?
It is possible that CVE-2019-18347 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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