OpenCMS up to 20 Import DB xml external entity reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenCMS up to 20. It has been declared as problematic. This affects an unknown part of the component Import DB. Such manipulation leads to xml external entity reference. This vulnerability is referenced as CVE-2026-38429. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in OpenCMS up to 20 and classified as critical. Affected by this issue is some unknown processing of the component Import DB. The manipulation with an unknown input leads to a xml external entity reference vulnerability. Using CWE to declare the problem leads to CWE-611. 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

OpenCMS v20 and before is vulnerable to XML External Entity (XXE) in the Admin Import DB feature due to insecure XML parsing of user supplied .zip files containing a manifest.xml.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-38429 since 04/06/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available.

Applying the patch e3e41e5a96d71383279e7d23c627efc9934008c1 is able to eliminate this problem. The bugfix is ready for download at github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: e3e41e5a96d71383279e7d23c627efc9934008c1

Timelineinfo

04/06/2026 CVE reserved
05/05/2026 +29 days Advisory disclosed
05/05/2026 +0 days VulDB entry created
05/05/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: e3e41e5a96d71383279e7d23c627efc9934008c1
Status: Confirmed

CVE: CVE-2026-38429 (🔒)
GCVE (CVE): GCVE-0-2026-38429
GCVE (VulDB): GCVE-100-361220

Entryinfo

Created: 05/05/2026 19:43
Changes: 05/05/2026 19:43 (56)
Complete: 🔍
Cache ID: 216::103

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