GHSA-pj6p-9p8x-5mfc CVE-2023-42346
Alkacon OpenCms is vulnerable to XXE when the <!DOCTYPE> refers to an external host
- Severity
- 7.5 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 0.23%
- Chance of exploitation in the next 30 days. Higher than 14.15% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-611 Improper Restriction of XML External Entity Reference
- Fix
16.0- Upgrade org.opencms:opencms-core to this version or later
Description
Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.
Affected versions
Maven
| Package | Vulnerable | Fixed in |
|---|---|---|
| org.opencms:opencms-core | < 16.0 |
16.0 |
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 → 16.0
- maven
<dependency><groupId>org.opencms</groupId><artifactId>opencms-core</artifactId><version>16.0</version></dependency>- gradle
implementation("org.opencms:opencms-core:16.0")
Severity breakdown
CVSS 3.1 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
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
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-2887-f3v6-6rjf Alkacon OpenCms is vulnerable to XSS via updateModelGroups.jsp | Medium | Also affects org.opencms:opencms-core |
| GHSA-rcc6-6q2f-m2cw Alkacon OpenCms allows remote unauthenticated attackers to obtain sensitive information | High | 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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