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exist-db:exist-core XML External Entity (XXE) vulnerability

Critical severity GitHub Reviewed Published Dec 20, 2018 to the GitHub Advisory Database • Updated Jan 11, 2023

Package

maven org.exist-db:exist-core (Maven)

Affected versions

< 5.1.0

Patched versions

5.1.0

Description

exist version <= 5.0.0-RC4 contains a XML External Entity (XXE) vulnerability in XML Parser for REST Server that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.

References

Published to the GitHub Advisory Database Dec 20, 2018
Reviewed Jun 16, 2020
Last updated Jan 11, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS score

0.230%
(62nd percentile)

Weaknesses

CVE ID

CVE-2018-1000823

GHSA ID

GHSA-jxm5-5xcw-h57q

Source code

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