CVE-2019-18347 json
A stored XSS issue was discovered in DAViCal through 1.1.8.
published 2019-12-04 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8135
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- davical Debian 14, Debian 13, Debian 12 1.1.9.2-1
debian advisories DEBIAN-CVE-2019-18347
Exploit prediction
1.13% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- hackdefense.com https://hackdefense.com/publications/cve-2019-18347-davical-caldav-server-vulnerability/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
hackdefense.com
/publications/cve-2019-18347-davical-caldav-server-vulnerability/
exploit, third-party-advisory
-
debian.org
/security/2019/dsa-4582
vendor-advisory
-
davical.org
/
product
-
gitlab.com
/davical-project/davical/blob/master/ChangeLog
release-notes, third-party-advisory
-
seclists.org
/fulldisclosure/2019/Dec/17
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2019/Dec/19
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2019/Dec/18
mailing-list, third-party-advisory
-
packetstormsecurity.com
/files/155628/DAViCal-CalDAV-Server-1.1.8-Persistent-Cross-Site-Scripting.html
third-party-advisory
-
lists.debian.org
/debian-lts-announce/2019/12/msg00016.html
mailing-list
-
seclists.org
/bugtraq/2019/Dec/30
mailing-list
Sources
- CVE List CVE-2019-18347
- NVD CVE-2019-18347
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.