What’s Vulnerable › Vulnerabilities

CVE-2019-18347

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-12-04 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• Davical: through 1.1.8

References

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

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