CVE-2018-5753

MEDIUM

Open-Xchange OX App Suite <7.6.3-7.8.4 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-5753. PoCs published by Open-Xchange.

AI-analyzed exploit summary This is a detailed vulnerability writeup for multiple CVEs affecting OX App Suite, including CVE-2018-5756, which involves improper privilege management allowing users to delete tasks or modify appointments of other users within the same context.

Description

The frontend component in Open-Xchange OX App Suite before 7.6.3-rev31, 7.8.x before 7.8.2-rev31, 7.8.3 before 7.8.3-rev41, and 7.8.4 before 7.8.4-rev20 allows remote attackers to spoof the origin of e-mails via unicode characters in the "personal part" of a (1) From or (2) Sender address.

Exploits (1)

exploitdb WRITEUP
by Open-Xchange · textwebappsxml
https://www.exploit-db.com/exploits/44881

This is a detailed vulnerability writeup for multiple CVEs affecting OX App Suite, including CVE-2018-5756, which involves improper privilege management allowing users to delete tasks or modify appointments of other users within the same context.

Classification
Writeup 100%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: OX App Suite 7.8.4 and earlier
Auth required
Prerequisites: Valid user credentials · Access to the API endpoints
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/44881/
Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2018/Jun/23

Scores

CVSS v3 6.5
EPSS 0.0839
EPSS Percentile 94.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-20
Status published
Products (4)
open-xchange/open-xchange_appsuite 7.6.3 rev14 (14 CPE variants)
open-xchange/open-xchange_appsuite 7.8.0
open-xchange/open-xchange_appsuite 7.8.2
open-xchange/open-xchange_appsuite 7.8.3 (34 CPE variants)
Published Jun 16, 2018
Tracked Since Feb 18, 2026