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).

Cross site scripting vulnerability in seeyon Zhiyuan A8+ Collaborative Management Software 7.0 via the topValue parameter to the seeyon/main.do endpoint.

Rejected reason: REJECT DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: The vendor mentioned in the original disclosure filed a report that this issue affects a different vendor. The researcher was not able to provide a proof for his disputed claim which is why the CNA decided to revoke the whole entry.

Rejected reason: REJECT DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: The vendor mentioned in the original disclosure filed a report that this issue affects a different vendor. The researcher was not able to provide a proof for his disputed claim which is why the CNA decided to revoke the whole entry.

Rejected reason: REJECT DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: The vendor mentioned in the original disclosure filed a report that this issue affects a different vendor. The researcher was not able to provide a proof for his disputed claim which is why the CNA decided to revoke the whole entry.

Seeyon Zhiyuan OA Web Application System versions up to and including 7.0 SP1 improperly decode and parse the enc parameter in thirdpartyController.do. The decoded map values can influence session attributes without sufficient authentication/authorization checks, enabling attackers to assign a session to arbitrary user IDs. VulnCheck has observed this vulnerability being exploited in the wild as of 2025-10-30 at 00:30:40.855917 UTC.

An arbitrary file upload vulnerability exists in the Zhiyuan OA platform via the wpsAssistServlet interface. The realFileType and fileId parameters are improperly validated during multipart file uploads, allowing unauthenticated attackers to upload crafted JSP files outside of intended directories using path traversal. Successful exploitation enables remote code execution as the uploaded file can be accessed and executed through the web server. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-01 UTC.

A vulnerability classified as critical has been found in Seeyon Zhiyuan OA Web Application System up to 8.1 SP2. This affects the function this.oursNetService.getData of the file com\ours\www\ehr\openPlatform1\open4ClientType\controller\ThirdMenuController.class. The manipulation of the argument url leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. It has been rated as critical. Affected by this issue is the function postData of the file ROOT\WEB-INF\classes\com\ours\www\ehr\salary\service\data\EhrSalaryPayrollServiceImpl.class of the component Beetl Template Handler. The manipulation of the argument payrollId leads to code injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. It has been classified as problematic. Affected is the function Download of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\WEB-INF\lib\seeyon-apps-m3.jar!\com\seeyon\apps\m3\core\controller\M3CoreController.class of the component ZIP File Handler. The manipulation of the argument Name leads to path traversal. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability, which was classified as problematic, was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. Affected is an unknown function of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\ssoproxy\jsp\ssoproxy.jsp. The manipulation of the argument Name leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability, which was classified as problematic, has been found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. This issue affects some unknown processing of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\common\js\addDate\date.jsp of the component URL Parameter Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in Seeyon Zhiyuan Interconnect FE Collaborative Office Platform 5.5.2 and classified as critical. This issue affects some unknown processing of the file /sysform/042/check.js%70. The manipulation of the argument Name leads to sql injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in Seeyon Zhiyuan Interconnect FE Collaborative Office Platform up to 20250224. It has been rated as critical. Affected by this issue is some unknown functionality of the file /security/addUser.jsp. The manipulation of the argument groupId leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

An issue was discovered in seeyonOA version 8, allows remote attackers to execute arbitrary code via the importProcess method in WorkFlowDesignerController.class component.

Cross-Site Scripting (XSS) vulnerability in Zhiyuan G6 Government Collaboration System V6.1SP1, via the 'method' parameter to 'seeyon/hrSalary.do'.