apostrophecms apostrophe form up to 1.5.4 Form unrestricted upload

Summaryinfo

A vulnerability was found in apostrophecms apostrophe form up to 1.5.4 and classified as critical. This affects an unknown part of the component Form. Such manipulation leads to unrestricted upload. This vulnerability is referenced as CVE-2026-113656. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in apostrophecms apostrophe form up to 1.5.4. Affected by this issue is an unknown code of the component Form. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

ApostropheCMS is an open-source Node.js content management system. Prior to 1.5.5 of the ApostropheCMS Form add-on, its form submission route stages unbounded multipart uploads before form validation or authentication and lacks upload size, count, and rate limits. Repeated unauthenticated submissions can consume temporary disk storage and disrupt form handling or other host services. This issue is fixed in ApostropheCMS Form 1.5.5.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-113656 since 10/20/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

Upgrading to version 1.5.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-105185). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• apostrophecms

Name

• apostrophe form

Version

• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3
• 1.5.4

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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