What is the CVSS score of CVE-2018-9998?

CVE-2018-9998 has a CVSS 3.0 base score of 6.5 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.8%.

Open Xchange CVE-2018-9998

MEDIUM

Information Exposure (CWE-200)

2018-07-05 cve@mitre.org

Information Disclosure Open Xchange Open Xchange Appsuite

6.5

CVSS 3.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-200 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V14 - Data Protection Data exposure prevention MITRE ATT&CK 2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could access sensitive data that should not be disclosed by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 1.8% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

Open-Xchange OX App Suite before 7.6.3-rev37, 7.8.x before 7.8.2-rev40, 7.8.3 before 7.8.3-rev48, and 7.8.4 before 7.8.4-rev28 include folder names in API error responses, which allows remote. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. Open-Xchange OX App Suite before 7.6.3-rev37, 7.8.x before 7.8.2-rev40, 7.8.3 before 7.8.3-rev48, and 7.8.4 before 7.8.4-rev28 include folder names in API error responses, which allows remote attackers to obtain sensitive information via the folder parameter in an "all" action to api/tasks. Affected products include: Open-Xchange Open-Xchange Appsuite. Version information: before 7.6.3.

Know when Open Xchange gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

DescriptionNVD

Open-Xchange OX App Suite before 7.6.3-rev37, 7.8.x before 7.8.2-rev40, 7.8.3 before 7.8.3-rev48, and 7.8.4 before 7.8.4-rev28 include folder names in API error responses, which allows remote attackers to obtain sensitive information via the folder parameter in an "all" action to api/tasks.

Threat Intelligence Overview

EPSS Score

1.8%

Top 24% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 1.8%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev14:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev15:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev16:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev17:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev18:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev20:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev22:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev23:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev24:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev25:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev26:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev28:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev29:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev30:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev31:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev32:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev33:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev35:*:*:*:*:*:*

cpe:2.3:a:open-xchange:open-xchange_appsuite:7.6.3:rev36:*:*:*:*:*:*

+ 69 more

More in Open Xchange

View all

CVE-2024-4367 HIGH Act Now POC

8.8 May 14

Arbitrary JavaScript execution in Mozilla's PDF.js library affects Firefox before 126, Firefox ESR before 115.11, and Th

CVE-2022-24405 CRITICAL Act Now POC

9.8 Jul 27

OX App Suite through 7.10.6 allows OS Command Injection via a serialized Java class to the Documentconverter API. Rated

CVE-2022-23100 CRITICAL Act Now POC

9.8 Jul 27

OX App Suite through 7.10.6 allows OS Command Injection via Documentconverter (e.g., through an email attachment). Rated

CVE-2018-5752 HIGH This Week POC

8.8 Jun 16

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-rev4

CVE-2019-14226 HIGH This Week POC

8.1 Oct 14

OX App Suite through 7.10.2 has Insecure Permissions. Rated high severity (CVSS 8.1), this vulnerability is remotely exp

CVE-2013-5200 HIGH This Week POC

7.5 Sep 25

The (1) REST and (2) memcache interfaces in the Hazelcast cluster API in Open-Xchange AppSuite 7.0.x before 7.0.2-rev15

CVE-2014-7871 MEDIUM This Month POC

6.5 Nov 21

SQL injection vulnerability in Open-Xchange (OX) AppSuite before 7.4.2-rev36 and 7.6.x before 7.6.0-rev23 allows remote

CVE-2022-24406 MEDIUM This Month POC

6.5 Jul 27

OX App Suite through 7.10.6 allows SSRF because multipart/form-data boundaries are predictable, and this can lead to inj

CVE-2021-33491 MEDIUM This Month POC

6.5 Nov 22

OX App Suite through 7.10.5 allows Directory Traversal via ../ in an OOXML or ODF ZIP archive, because of the mishandlin

CVE-2018-5753 MEDIUM This Month POC

6.5 Jun 16

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-rev

CVE-2018-5751 MEDIUM This Month POC

6.5 Jun 16

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-rev4

CVE-2016-6851 MEDIUM This Month POC

6.1 Dec 15

An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Rated medium severity (CVSS 6.1), this vulnerability

Same weakness CWE-200 – Information Exposure

View all

CVE-2024-24919 HIGH POC

8.6

CVE-2021-41277 HIGH POC

7.5

CVE-2016-6415 HIGH POC

7.5

CVE-2013-7331 MEDIUM POC

6.5

CVE-2025-31125 MEDIUM POC

5.3

CVE-2025-11749 CRITICAL POC

9.8

CVE-2017-16894 HIGH POC

7.5

CVE-2017-11165 CRITICAL POC

9.8

Same technique Information Disclosure

View all

CVE-2019-2725 CRITICAL POC

9.8

CVE-2021-34523 CRITICAL POC

9.0

CVE-2013-2251 CRITICAL POC

9.8

CVE-2017-5638 CRITICAL POC

9.8

CVE-2025-24813 CRITICAL POC

9.8

CVE-2025-68613 HIGH POC

8.8

CVE-2015-1701 HIGH POC

7.8

CVE-2017-0147 HIGH POC

7.5

References

Advisories & patches

REF http://seclists.org/fulldisclosure/2018/Jul/12 REF http://www.securitytracker.com/id/1041213

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back