CVE-2017-16906
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event"...
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event" action.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event" action.
- Record
CVE-2017-16906- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event" action.
- Record
CVE-2017-16906- Updated
- 2026-11-02
EUVDEUVD-2017-8076 No score
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event" action.
- Record
EUVD-2017-8076- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8xmf-3fcj-f6cr
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event"...
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event" action.
- Record
GHSA-8xmf-3fcj-f6cr- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event" action.
- Record
CVE-2017-16906- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-16906
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event" action.
- Record
DEBIAN-CVE-2017-16906- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-16906
In Horde Groupware 5.2.19-5.2.22, there is XSS via the URL field in a "Calendar -> New Event" action.
- Record
UBUNTU-CVE-2017-16906- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
php-horde-kronolithDebian:12 |
before 4.2.24-1 | 4.2.24-1 |
php-horde-kronolithDebian:8 |
before 4.2.2-4+deb8u1, plus listed versions 4.2.2-4 |
4.2.2-4+deb8u1 |
php-horde-kronolithDebian:9 |
before 4.2.19-1+deb9u2, plus listed versions 4.2.19-14.2.19-1+deb9u1 |
4.2.19-1+deb9u2 |
php-horde-kronolithUbuntu:16.04:LTS |
All versions, plus listed versions 4.2.9-14.2.11-14.2.13-14.2.13-1ubuntu1 |
None known |
php-horde-kronolithUbuntu:18.04:LTS |
All versions, plus listed versions 4.2.22-14.2.23-14.2.23-1ubuntu1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-16906 is a medium vulnerability (CVSS 5.4) in Horde Groupware, published November 20, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.09%, the 65th percentile. Fixed in php-horde-kronolith 4.2.24-1.
References
code610.blogspot.com/2017/11/rce-via-xss-horde-5219.html
github.com/horde/kronolith/commit/09d90141292f9ec516a7a2007bf828ce2bbdf60d
lists.debian.org/debian-lts-announce/2020/08/msg00049.html
nvd.nist.gov/vuln/detail/CVE-2017-16906
security-tracker.debian.org/tracker/CVE-2017-16906
ubuntu.com/security/CVE-2017-16906
cve.org/CVERecord?id=CVE-2017-16906