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Vulnerability record · CVE-2018-5756 · published 16 June 2018

CVE-2018-5756: Open-xchange appsuite improper privilege management vulnerability

Open Xchange · Open Xchange Appsuite

The backend component in Open-Xchange OX App Suite before 7.6.3-rev36, 7.8.x before 7.8.2-rev39, 7.8.3 before 7.8.3-rev44, and 7.8.4 before 7.8.4-rev22 does not properly check for folder-to-object association, which allows remote authenticated users to delete arbitrary tasks via the task id in a delete action to api/tasks.

4.3 CVSS 3.0 Medium EPSS 5.6% · top 7.4% CWE-269 · Improper privilege management
4.3CVSS 3.0 base score, v2 4.0
5.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

The backend component in Open-Xchange OX App Suite before 7.6.3-rev36, 7.8.x before 7.8.2-rev39, 7.8.3 before 7.8.3-rev44, and 7.8.4 before 7.8.4-rev22 does not properly check for folder-to-object association, which allows remote authenticated users to delete arbitrary tasks via the task id in a delete action to api/tasks.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/148118/OX-App-Suite-7.8.4-XSS-Privilege-Management-SSRF-Traversal.html ExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2018/Jun/23 ExploitMailing ListThird Party Advisory
https://www.exploit-db.com/exploits/44881/ ExploitThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/148118/OX-App-Suite-7.8.4-XSS-Privilege-Management-SSRF-Traversal.html ExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2018/Jun/23 ExploitMailing ListThird Party Advisory
https://www.exploit-db.com/exploits/44881/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2017-13667Open-xchange appsuite server-side request forgery (ssrf) vulnerabilityOX Software GmbH OX App Suite 7.8.4 and earlier is affected by: SSRF.EPSS 0.89%9.8CVE-2020-12645Open-xchange appsuite improper restriction of authentication attempts vulnerabilityOX App Suite 7.10.1 to 7.10.3 has improper input validation for rate limits with a crafted User-Agent header, spoofed vacation notices, and /apps/loa…EPSS 1.1%9.8CVE-2019-7158Open-xchange appsuite vulnerabilityOX App Suite 7.10.0 and earlier has Incorrect Access Control.EPSS 1.5%9.8CVE-2017-17060Open-xchange appsuite vulnerabilityOX Software GmbH OX App Suite 7.8.4 and earlier is affected by: Insecure Permissions.EPSS 1.2%9.8CVE-2017-5210Open-xchange appsuite information exposure vulnerabilityOpen-Xchange GmbH OX App Suite 7.8.3 and earlier is affected by: Information Exposure.EPSS 1.4%9.8CVE-2017-5212Open-xchange appsuite improper access control vulnerabilityOpen-Xchange GmbH OX App Suite 7.8.3 is affected by: Incorrect Access Control.EPSS 1.4%9.8CVE-2017-5863Open-xchange appsuite improper access control vulnerabilityOpen-Xchange GmbH OX App Suite 7.8.3 and earlier is affected by: Incorrect Access Control.EPSS 1.4%8.8CVE-2023-26452Open-xchange appsuite sql injection vulnerabilityRequests to cache an image and return its metadata could be abused to include SQL queries that would be executed unchecked. Exploiting this vulnerabi…EPSS 0.37%

Source: NIST National Vulnerability Database (record CVE-2018-5756), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.