Seeyon A8-V5 Collaborative Management Software 6.1sp1 POST htmlofficeservlet unrestricted upload

Summaryinfo

A vulnerability described as critical has been identified in Seeyon A8-V5 Collaborative Management Software and A8+ Collaborative Management Software 6.1sp1. This impacts an unknown function of the file /seeyon/htmlofficeservlet of the component POST Handler. Executing a manipulation can lead to unrestricted upload. This vulnerability is registered as CVE-2019-25714. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in Seeyon A8-V5 Collaborative Management Software and A8+ Collaborative Management Software 6.1sp1 and classified as critical. This vulnerability affects an unknown code block of the file /seeyon/htmlofficeservlet of the component POST Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads. Attackers can write JSP webshells to the web root and execute them through the web server to achieve arbitrary OS command execution with web server privileges. Exploitation evidence was first observed by the Shadowserver Foundation on 2021-03-26 (UTC).

The advisory is available at sourceforge.net. This vulnerability was named CVE-2019-25714 since 04/21/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/21/2026). This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Seeyon

Name

• A8+ Collaborative Management Software
• A8-V5 Collaborative Management Software

Version

• 6.1sp1

CPE 2.3info

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CPE 2.2info

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