Description
Horde Trean, as used in Horde Groupware Webmail Edition through 5.2.22 and other products, allows CSRF, as demonstrated by the treanBookmarkTags parameter to the trean/ URI on a webmail server. NOTE: treanBookmarkTags could, for example, be a stored XSS payload.
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 | 5.2.21+debian0-1 | — |
| Debian 12 | php-horde-trean | No fix yet | — |
| Debian 8 | php-horde | 5.2.1+debian0-2+deb8u5 | DLA-2033-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | php-horde +1 | No fix yet | — |
| Ubuntu 16.04 LTS | php-horde +1 | No fix yet | — |
Advisories 1
- DLA-2033-1 php-horde - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://numanozdemir.com/respdisc/horde/horde.mp4
- https://numanozdemir.com/respdisc/horde/horde.txt
- https://packetstormsecurity.com/files/152975/Horde-Webmail-5.2.22-XSS-CSRF-SQL-Injection-Code-Execution.html
- https://www.exploit-db.com/exploits/46903
- https://cxsecurity.com/issue/WLB-2019050199
- https://exchange.xforce.ibmcloud.com/vulnerabilities/161333
- https://bugs.horde.org/ticket/14926
- [debian-lts-announce] 20191214 [SECURITY] [DLA 2033-1] php-horde security update mailing-list