What is CVE-2019-12094?

CVE-2019-12094 is a medium-severity vulnerability in Horde Groupware, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-10-24.

How severe is CVE-2019-12094?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Horde Groupware

CVE-2019-12094

Horde Groupware Webmail Edition through 5.2.22 allows XSS via an admin/user.php?form=update_f&user_name= or admin/user.php?form=remove_f&user_name= or admin/config/diff.php?app= URI.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-10-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.015 (74.7th percentile), scored 2026-10-24.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Horde Groupware

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

numanozdemir.com/respdisc/horde/horde.mp4 (Exploit, Third Party Advisory)
numanozdemir.com/respdisc/horde/horde.txt (Exploit, Third Party Advisory)
packetstormsecurity.com/files/152975/Horde-Webmail-5.2.22-XSS-CSRF-SQL-Injectio… (Exploit, VDB Entry, Third Party Advisory)
www.exploit-db.com/exploits/46903 (Exploit, VDB Entry, Third Party Advisory)
cxsecurity.com/issue/WLB-2019050199 (Exploit, Third Party Advisory)
bugs.horde.org/ticket/14926 (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2019-12094?: CVE-2019-12094 is a medium-severity vulnerability in Horde Groupware, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-10-24.
How severe is CVE-2019-12094?: Medium severity. CVSS v3 base score is 6.1 out of 10.