CVE-2025-9659: Zoneland O2oa XSS Vulnerability

CVE-2025-9659 Overview

CVE-2025-9659 is a cross-site scripting (XSS) vulnerability in O2OA, an open-source office automation platform developed by Zoneland. The flaw resides in an unknown function within the /x_portal_assemble_designer/jaxrs/widget endpoint, which is part of the Personal Profile Page component. The vulnerability affects O2OA versions up to 10.0-410. An authenticated remote attacker can inject malicious script content that executes in the browser context of users who view the affected profile page. The vendor confirmed via GitHub issue that the problem will be addressed in a future release.

Critical Impact
Authenticated attackers can inject persistent script payloads through the Personal Profile Page, enabling session theft, phishing redirection, or unauthorized actions in the context of other users.

Affected Products

Zoneland O2OA versions up to and including 10.0-410
Component: Personal Profile Page
Endpoint: /x_portal_assemble_designer/jaxrs/widget

Discovery Timeline

2025-08-29 - CVE-2025-9659 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-9659

Vulnerability Analysis

The vulnerability is a stored or reflected cross-site scripting weakness [CWE-79] in the O2OA Personal Profile Page component. The affected handler within /x_portal_assemble_designer/jaxrs/widget processes user-controllable input without applying sufficient output encoding or input sanitization. When the processed data is rendered in the browser, embedded HTML or JavaScript executes within the trust context of the O2OA application.

Exploitation requires network access and low-privilege authentication, along with user interaction such as viewing the targeted profile. Successful execution runs arbitrary JavaScript in the victim's browser session, which can be used to hijack sessions, perform actions on behalf of the victim, or redirect users to attacker-controlled infrastructure.

The vendor acknowledged the report in GitHub issue #175 and indicated a fix will ship in a new version. Public disclosure of the issue increases the likelihood of opportunistic exploitation against unpatched instances.

Root Cause

The root cause is missing or insufficient neutralization of user-supplied data before it is reflected in the Personal Profile Page response. The widget handler trusts attribute or body values submitted by authenticated users and emits them into HTML without context-aware encoding.

Attack Vector

An authenticated attacker submits a crafted payload containing HTML or JavaScript through the widget endpoint associated with the profile page. When another authenticated user, including administrators, loads the page containing the malicious payload, the script executes in their browser. The attack is remote and requires user interaction, as reflected in the CVSS 4.0 vector components AV:N, PR:L, and UI:P.

The vulnerability affects an unknown function in the file /x_portal_assemble_designer/jaxrs/widget. Refer to the vendor advisory on GitHub and the VulDB entry for additional technical context. No verified proof-of-concept code is published in the referenced sources.

Detection Methods for CVE-2025-9659

Indicators of Compromise

HTTP requests to /x_portal_assemble_designer/jaxrs/widget containing script tags, event handlers (onerror, onload), or encoded JavaScript payloads.
Unexpected outbound connections from user browsers to external domains shortly after loading an O2OA Personal Profile Page.
Profile data fields containing <script>, javascript:, or encoded HTML entities that resolve to executable content.

Detection Strategies

Inspect web server and application logs for POST or PUT requests to the widget endpoint containing HTML markup or JavaScript keywords.
Deploy a web application firewall rule to flag requests to /x_portal_assemble_designer/jaxrs/widget with payloads matching XSS signatures.
Review stored profile and widget data in the O2OA database for persisted script content prior to patching.

Monitoring Recommendations

Enable detailed access logging on the O2OA application server and forward logs to a centralized analytics platform for pattern matching.
Monitor authenticated user sessions for anomalous activity such as privilege changes or mass data access following profile page views.
Alert on Content Security Policy (CSP) violation reports originating from O2OA pages.

How to Mitigate CVE-2025-9659

Immediate Actions Required

Track the vendor GitHub issue for the fixed release and plan an upgrade window.
Restrict access to O2OA to trusted internal networks or VPN users until a patched version is deployed.
Audit existing user profiles and widget configurations for injected HTML or script content and sanitize affected records.

Patch Information

The vendor stated in the GitHub issue that the vulnerability will be fixed in a new version of O2OA. At the time of the last NVD update on 2026-06-17, no fixed version is enumerated in the advisory. Monitor the O2OA GitHub repository for release notes referencing CVE-2025-9659 and apply the update as soon as it becomes available.

Workarounds

Enforce a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins.
Place a web application firewall in front of O2OA with rules blocking HTML and JavaScript payloads in requests to /x_portal_assemble_designer/jaxrs/widget.
Limit the ability of low-privilege users to edit profile fields that are rendered to other users until the patch is applied.

bash

# Example WAF rule concept (ModSecurity-style) blocking script payloads to the vulnerable endpoint
SecRule REQUEST_URI "@contains /x_portal_assemble_designer/jaxrs/widget" \
  "id:1009659,phase:2,deny,status:403,log,\
   msg:'CVE-2025-9659 - potential XSS payload to O2OA widget endpoint',\
   chain"
  SecRule ARGS|REQUEST_BODY "@rx (?i)(<script|javascript:|onerror=|onload=)" \
    "t:none,t:urlDecodeUni,t:htmlEntityDecode"