Open-Xchange App Suite XML Data information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability, which was classified as problematic, has been found in Open-Xchange App Suite up to 7.6.3-rev36/7.8.2-rev39/7.8.3-rev47/7.8.4-rev27. Affected by this issue is some unknown functionality of the component XML Data Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The bug was discovered 07/02/2018. The weakness was disclosed 07/03/2018 by Michael Reizelman, Secator and Antonio (Website). The advisory is shared for download at The public release has been coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2018-9998 since 04/10/2018. The attack may be launched remotely. A simple authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Applying the patch 7.6.3-rev37/7.8.2-rev40/7.8.3-rev48/7.8.4-rev28 is able to eliminate this problem.

The entry 120331 is pretty similar.






CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 7.6.3-rev37/7.8.2-rev40/7.8.3-rev48/7.8.4-rev28


04/10/2018 🔍
07/02/2018 +83 days 🔍
07/03/2018 +1 days 🔍
07/03/2018 +0 days 🔍
07/05/2018 +1 days 🔍
07/05/2018 +0 days 🔍
04/03/2023 +1733 days 🔍



Researcher: Michael Reizelman/Secator/Antonio
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2018-9998 (🔍)
SecurityTracker: 1041213

See also: 🔍


Created: 07/05/2018 08:39 AM
Updated: 04/03/2023 01:49 PM
Changes: 07/05/2018 08:39 AM (67), 02/25/2020 10:07 AM (2), 04/03/2023 01:49 PM (4)
Complete: 🔍


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