Description
The image view functionality in Horde Groupware Webmail Edition before 5.2.22 is affected by a stored Cross-Site Scripting (XSS) vulnerability via an SVG image upload containing a JavaScript payload. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 12 | php-horde | 5.2.23+debian0-1 | — |
| Debian 8 | php-horde | 5.2.1+debian0-2+deb8u6 | DLA-2230-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | php-horde | No fix yet | — |
| Ubuntu 16.04 LTS | php-horde | No fix yet | — |
Advisories 1
- DLA-2230-1 php-horde - security update Debian Security (DSA / DLA) · Mar 9, 2026