ApostropheCMS up to 1.27.x uploadfs createContainer information disclosure

Summaryinfo

A vulnerability identified as problematic has been detected in ApostropheCMS up to 1.27.x. This issue affects the function createContainer of the component uploadfs. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2026-113652. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in ApostropheCMS up to 1.27.x. This issue affects the function createContainer of the component uploadfs. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

ApostropheCMS is an open-source Node.js content management system. From 1.25.0 until 1.28.0, uploadfs Azure backend leaks account-level SAS token into every public attachment URL. When uploadfs is configured with the Azure backend and sas: true, createContainer() builds the BlobServiceClient from a URL that embeds the full SAS query string, and Azure SDK v12 derived clients inherit that query string. This issue is fixed in version 1.28.0.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-113652 since 10/20/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 1.28.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• ApostropheCMS

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27

CPE 2.3info

• 🔒
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CPE 2.2info

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• 🔒
• 🔒

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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