CVE-2017-15235

high

Published 2017-10-11 · Modified 2026-05-13

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

7.5

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

8.5

Description

The File Manager (gollem) module 3.0.11 in Horde Groupware 5.2.21 allows remote attackers to bypass Horde authentication for file downloads via a crafted fn parameter that corresponds to the exact filename.

Predictions

Exploit likelihood

83%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-44059 webapps php

SecuriTeam · 2017-08-03

Horde Groupware 5.2.21 - Unauthorized File Download

Source code queued for fetch — refresh in a moment.

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`3.0.12-1`
debian	bullseye	fixed	`3.0.12-1`
debian	sid	fixed	`3.0.12-1`

Application impact

Vendor	Product	Versions	Fixed
horde	groupware	`5.2.21`

References

CWEs

CWE-425

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.