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GHSA-rcc6-6q2f-m2cw CVE-2023-42344

Alkacon OpenCms allows remote unauthenticated attackers to obtain sensitive information

High Maven
Severity
7.3 / 10
High · CVSS 3.1
Exploit chance (EPSS)
2.34%
Chance of exploitation in the next 30 days. Higher than 83.62% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-611 Improper Restriction of XML External Entity Reference
Fix
10.5.1
Upgrade org.opencms:opencms-core to this version or later

Description

Alkacon OpenCms before 10.5.1 allows remote unauthenticated attackers to obtain sensitive information via a cmis-online/query XXE attack on a Chemistry servlet.

Affected versions

Maven

PackageVulnerableFixed in
org.opencms:opencms-core
< 10.5.1
10.5.1

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

org.opencms:opencms-core Maven → 10.5.1

maven
<dependency><groupId>org.opencms</groupId><artifactId>opencms-core</artifactId><version>10.5.1</version></dependency>
gradle
implementation("org.opencms:opencms-core:10.5.1")

Severity breakdown

CVSS 3.1 7.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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

Weakness

CWE-611: Improper Restriction of XML External Entity Reference

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

How to prevent it
  • Implementation, System Configuration: Many XML parsers and validators can be configured to disable external entity expansion.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-pj6p-9p8x-5mfc
Alkacon OpenCms is vulnerable to XXE when the <!DOCTYPE> refers to an external host
High Also affects org.opencms:opencms-core
GHSA-2887-f3v6-6rjf
Alkacon OpenCms is vulnerable to XSS via updateModelGroups.jsp
Medium Also affects org.opencms:opencms-core
GHSA-8gpv-c454-3hfc
Alkacon OpenCms is vulnerable to XSS via cmis-online/type
Medium Also affects org.opencms:opencms-core
GHSA-h75c-f2xx-9vxv
OpenCMS Cross-Site Scripting vulnerability
Medium Also affects org.opencms:opencms-core
GHSA-7m3w-m5g3-cc88
OpenCMS cross-site scripting (XSS) vulnerability
Medium Also affects org.opencms:opencms-core
GHSA-vq95-6x79-qv8j
Alkacon OpenCMS stored cross-site scripting (XSS) vulnerability
Medium Also affects org.opencms:opencms-core
GHSA-vg6x-pchq-98mg
OpenCMS Cross-Site Scripting vulnerability
Medium Also affects org.opencms:opencms-core
GHSA-w62v-q77r-66cc
Alkacon OpenCMS XSS via Mercury template
Medium Also affects org.opencms:opencms-core
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