OpenCATS is an open-source applicant tracking system and recruitment CRM for staffing agencies and hiring teams. Prior to 0.10.0, the OpenCATS Import module in modules/import/ImportUI.php can preserve an uploaded file's original name for one import data type and place the file in the web-accessible temporary directory. An authenticated user with Import privileges can select the affected import path and upload a PHP file that remains under an attacker-controlled executable filename, and an import error can leave the file on disk. If the temporary directory is served with PHP execution enabled, requesting the staged file can execute arbitrary PHP code with the web server process privileges, exposing or modifying recruiting data and the host system. This issue is fixed in version 0.10.0.

OpenCATS from version 0.9.1a contains an SQL injection vulnerability in DataGrid filter handling that allows authenticated attackers to inject SQL through crafted filters targeting the non-filterable Tags column in the Candidates DataGrid. Attackers can bypass column filterable restrictions by manipulating filter requests to execute arbitrary SQL queries against the database.

OpenCATS through 0.9.7.4 contains a sql injection vulnerability in the sortDirection parameter of the DataGrid component that allows authenticated users to extract database contents. Attackers can inject malicious SQL via the sortDirection parameter in ajax/getDataGridPager.php to perform time-based blind injection attacks and read sensitive data.

OpenCATS 0.9.4 contains a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary commands by uploading malicious PHP files disguised as resume attachments. Attackers can upload PHP payloads through the careers job application endpoint and execute system commands via POST requests to the uploaded file in the upload directory.

OpenCATS prior to commit 3002a29 contains a PHP code injection vulnerability in the installer AJAX endpoint that allows unauthenticated attackers to execute arbitrary code by injecting PHP statements into the databaseConnectivity action parameter. Attackers can break out of the define() string context in config.php using a single quote and statement separator to inject malicious PHP code that persists and executes on every subsequent page load when the installation wizard remains incomplete.

A stored cross-site scripting (XSS) vulnerability in OpenCATS v0.9.7 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the city parameter at opencats/index.php?m=candidates.

A stored cross-site scripting (XSS) vulnerability in OpenCATS v0.9.7 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the state parameter at opencats/index.php?m=candidates.

A Cross-Site Request Forgery (CSRF) in OpenCATS 0.9.7 allows attackers to force users into submitting web requests via unspecified vectors.

An open redirect vulnerability exposes OpenCATS to template injection due to improper validation of user-supplied GET parameters.

Improper neutralization of input during web page generation allows an authenticated attacker with access to a restricted account to submit malicious Javascript as the description for a calendar event, which would then be executed in other users' browsers if they browse to that event. This could result in stealing session tokens from users with higher permission levels or forcing users to make actions without their knowledge.

Cross-site request forgery is facilitated by OpenCATS failure to require CSRF tokens in POST requests. An attacker can exploit this issue by creating a dummy page that executes Javascript in an authenticated user's session when visited.

Improper neutralization of input during web page generation allows an unauthenticated attacker to submit malicious Javascript as the answer to a questionnaire which would then be executed when an authenticated user reviews the candidate's submission. This could be used to steal other users’ cookies and force users to make actions without their knowledge.

Opencats v0.9.7 was discovered to contain a stored cross-site scripting (XSS) vulnerability in the component /opencats/index.php?m=calendar. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Description or Title text fields.

Opencats v0.9.7 was discovered to contain a SQL injection vulnerability via the importID parameter in the Import viewerrors function.

Opencats v0.9.7 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the component /opencats/index.php?m=settings&a=ajaxtagsupd.

OpenCATS v0.9.6 was discovered to contain a SQL injection vulnerability via the tagid variable in the Tag deletion function.

OpenCATS v0.9.6 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the entriesPerPage parameter.

OpenCATS v0.9.6 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the joborderID parameter.

OpenCATS v0.9.6 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the email parameter in the Check Email function.

OpenCATS v0.9.6 was discovered to contain a remote code execution (RCE) vulnerability via the getDataGridPager's ajax functionality.

OpenCATS v0.9.6 was discovered to contain a SQL injection vulnerability via the importID parameter in the Import viewerrors function.

OpenCATS v0.9.6 was discovered to contain a SQL injection vulnerability via the tagid variable in the Tag update function.

OpenCATS v0.9.6 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the callback component.

OpenCATS v0.9.6 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the indexFile component.

OpenCATS v0.9.6 was discovered to contain a SQL injection vulnerability via the entriesPerPage variable.

OpenCATS through 0.9.6 allows remote attackers to execute arbitrary code by uploading an executable file via lib/FileUtility.php.

OpenCATS through 0.9.5-3 unsafely deserializes index.php?m=activity requests, leading to remote code execution. This occurs because lib/DataGrid.php calls unserialize for the parametersactivity:ActivityDataGrid parameter. The PHP object injection exploit chain can leverage an destruct magic method in guzzlehttp.

OpenCATS through 0.9.5-3 has multiple Cross-site Scripting (XSS) issues.

lib/DocumentToText.php in OpenCats before 0.9.4-3 has XXE that allows remote users to read files on the underlying operating system. The attacker must upload a file in the docx or odt format.