Vulnerability CVE-2019-18345
Published: 2019-12-12

Description:
A reflected XSS issue was discovered in DAViCal through 1.1.8. It echoes the action parameter without encoding. If a user visits an attacker-supplied link, the attacker can view all data the attacked user can view, as well as perform all actions in the name of the user. If the user is an administrator, the attacker can for example add a new admin user to gain full access to the application.

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Davical -> Davical 

 References:
http://packetstormsecurity.com/files/155630/DAViCal-CalDAV-Server-1.1.8-Reflective-Cross-Site-Scripting.html
https://gitlab.com/davical-project/davical/blob/master/ChangeLog
https://hackdefense.com/publications/cve-2019-18345-davical-caldav-server-vulnerability/
https://lists.debian.org/debian-lts-announce/2019/12/msg00016.html
https://seclists.org/bugtraq/2019/Dec/30
https://wiki.davical.org/index.php/Main_Page
https://www.davical.org/
https://www.debian.org/security/2019/dsa-4582
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