CVE-2019-25312: InoERP Persistent XSS Vulnerability

CVE-2019-25312 Overview

InoERP 0.7.2 contains a persistent cross-site scripting (XSS) vulnerability in the comment section that allows unauthenticated attackers to inject malicious scripts. Attackers can submit comments with JavaScript payloads that execute in other users' browsers, potentially stealing cookies and session information. This stored XSS vulnerability (CWE-79) represents a significant risk as malicious payloads persist in the application database and execute every time a user views the affected content.

Critical Impact

Attackers can steal session cookies, hijack user accounts, perform actions on behalf of authenticated users, and potentially escalate access within the ERP system by targeting administrative users.

Affected Products

• InoERP version 0.7.2

Discovery Timeline

• 2026-02-11 - CVE-2019-25312 published to NVD
• 2026-02-11 - Last updated in NVD database

Technical Details for CVE-2019-25312

Vulnerability Analysis

This persistent cross-site scripting vulnerability exists in the comment functionality of InoERP 0.7.2. The application fails to properly sanitize user-supplied input before storing it in the database and rendering it back to other users. When an attacker submits a comment containing JavaScript code, the malicious script is stored and subsequently executed in the browsers of all users who view the affected page.

The vulnerability is particularly dangerous in an ERP context because these systems typically contain sensitive business data and are accessed by users with various privilege levels. Successful exploitation could lead to session hijacking, credential theft, or unauthorized business transactions performed under the context of legitimate users.

Root Cause

The root cause is improper input validation and missing output encoding (CWE-79). The comment submission functionality does not sanitize special characters or HTML/JavaScript content before storing user input. Additionally, when rendering comments, the application fails to properly encode output, allowing stored malicious scripts to execute in the browser context.

Attack Vector

The attack vector is network-based and requires low privileges. An attacker can exploit this vulnerability by:

1. Accessing the comment functionality within InoERP
2. Submitting a comment containing a JavaScript payload designed to steal cookies or perform malicious actions
3. Waiting for other users (especially administrators) to view the page containing the malicious comment
4. The payload executes in the victim's browser, sending session tokens or performing unauthorized actions

The vulnerability is documented in Exploit-DB #47428, which provides technical details about the exploitation technique. The attack requires some user interaction as victims must navigate to the page containing the stored malicious content.

Detection Methods for CVE-2019-25312

Indicators of Compromise

• Unusual JavaScript code appearing in comment fields or database records
• Unexpected outbound connections from user browsers to unknown domains
• Session tokens or cookies being transmitted to external servers
• Anomalous user behavior patterns indicating potential session hijacking

Detection Strategies

• Implement web application firewall (WAF) rules to detect XSS payloads in form submissions
• Monitor application logs for suspicious comment submissions containing script tags or event handlers
• Deploy browser-based security controls such as Content Security Policy (CSP) headers
• Conduct regular security scans of the InoERP database for stored malicious content

Monitoring Recommendations

• Enable detailed logging for all comment submission and modification activities
• Monitor for unusual patterns in user session behavior that may indicate hijacking
• Set up alerts for HTTP requests containing common XSS payload patterns
• Review stored comments periodically for evidence of injection attempts

How to Mitigate CVE-2019-25312

Immediate Actions Required

• Upgrade InoERP to a patched version if available, or consider alternative ERP solutions
• Implement input validation to reject or sanitize comments containing HTML or JavaScript
• Apply output encoding when rendering user-supplied content to prevent script execution
• Deploy Content Security Policy (CSP) headers to mitigate the impact of XSS attacks

Patch Information

No official vendor patch has been confirmed in the available CVE data. Organizations should review the GitHub inoERP Repository for any security updates or commits addressing this vulnerability. The VulnCheck Advisory on inoERP may contain additional mitigation guidance.

Workarounds

• Disable or restrict access to the comment functionality until a patch is applied
• Implement a reverse proxy or WAF with XSS filtering capabilities in front of the application
• Apply strict Content Security Policy headers to prevent inline script execution
• Manually sanitize existing comments in the database to remove any stored malicious content
• Restrict user permissions to minimize the impact of potential session hijacking

Organizations should consider implementing defense-in-depth measures including input validation libraries, output encoding frameworks, and browser security headers to protect against this and similar XSS vulnerabilities.