CVE-2024-25042: IBM Cognos Analytics XSS Vulnerability

CVE-2024-25042 Overview

CVE-2024-25042 is a Cross-Site Scripting (XSS) vulnerability in IBM Cognos Analytics. The flaw affects versions 11.2.0 through 11.2.4 and 12.0.0 through 12.0.3. It stems from improper validation of column headings in Cognos Explorations, which allows a remote attacker to inject malicious script content. Successful exploitation requires user interaction and executes attacker-controlled JavaScript in the victim's browser session. The vulnerability is tracked under CWE-79 (Improper Neutralization of Input During Web Page Generation). IBM has published a security advisory and a fixed release. No public exploit code or in-the-wild exploitation has been reported at the time of writing.

Critical Impact
Remote attackers can execute arbitrary script in an authenticated user's browser context, enabling session compromise, data theft, and unauthorized actions within Cognos Analytics.

Affected Products

IBM Cognos Analytics 11.2.0 through 11.2.4
IBM Cognos Analytics 12.0.0 through 12.0.3
Cognos Explorations component (column headings input handling)

Discovery Timeline

2024-12-18 - CVE-2024-25042 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-25042

Vulnerability Analysis

The vulnerability is a stored or reflected Cross-Site Scripting flaw located in the Cognos Explorations feature. IBM Cognos Analytics fails to properly sanitize user-supplied input used as column headings before rendering it in the web interface. When a victim loads an exploration containing a malicious heading, the browser interprets injected markup as executable script.

The attack executes in the browser under the origin of the Cognos Analytics application. Because the CVSS scope is changed, the impact extends beyond the vulnerable component to affect the browsing session and any data accessible through it. Confidentiality and integrity are affected at a low level, while availability is unaffected.

Exploitation requires the attacker to induce user interaction, typically by convincing an authenticated user to open a crafted exploration or view a report referencing malicious column data. Network access to the Cognos Analytics web interface is sufficient; no privileges are required to stage the malicious payload if the interface accepts unauthenticated input, though realistic attack paths generally involve a lower-privileged user planting content for a higher-privileged reviewer.

Root Cause

The root cause is missing output encoding of column heading values in the Cognos Explorations rendering path. Input received from a user or upstream data source is written into the HTML response without contextual escaping, allowing <script> tags or event-handler attributes to be interpreted by the browser.

Attack Vector

An attacker submits a column heading containing HTML or JavaScript payload content through a Cognos Explorations workflow. When another user opens the resulting exploration, the payload executes in that user's browser. Typical impact includes session cookie theft, forced actions against the Cognos API, phishing overlays, and pivoting to internal reporting data.

No verified public proof-of-concept code is available. Refer to the IBM security advisory for vendor-supplied technical details.

Detection Methods for CVE-2024-25042

Indicators of Compromise

Cognos Explorations objects containing column headings with HTML tags, <script> elements, or on* event handler attributes.
Outbound HTTP requests from user browsers to unfamiliar domains immediately after loading a Cognos exploration.
Anomalous Cognos API calls originating from authenticated user sessions that do not match normal user behavior.

Detection Strategies

Inspect Cognos content store metadata for exploration and report objects containing suspicious characters (<, >, javascript:) in column heading fields.
Monitor web application firewall (WAF) logs for XSS payload patterns submitted to Cognos endpoints that handle exploration definitions.
Correlate browser-side Content Security Policy (CSP) violation reports with Cognos Analytics URLs to identify script injection attempts.

Monitoring Recommendations

Enable and centralize Cognos Analytics audit logging for content creation and modification events.
Alert on privileged Cognos accounts opening explorations authored by lower-privileged users shortly after creation.
Baseline outbound network traffic from workstations that access Cognos Analytics and investigate deviations.

How to Mitigate CVE-2024-25042

Immediate Actions Required

Identify all IBM Cognos Analytics deployments and confirm version against the affected ranges 11.2.0–11.2.4 and 12.0.0–12.0.3.
Apply the fixed version referenced in the IBM Support advisory for node 7173592.
Restrict who can create or modify Cognos Explorations until patching completes.
Instruct users to avoid opening explorations from untrusted or unexpected authors.

Patch Information

IBM has released fixed versions of Cognos Analytics that address the improper validation of column headings. Upgrade to the version identified in the IBM security bulletin. Review the advisory for the specific fix pack or interim fix applicable to your deployed release train (11.2.x or 12.0.x).

Workarounds

Deploy a WAF rule that blocks HTML and script metacharacters in POST bodies to Cognos Explorations endpoints if immediate patching is not possible.
Enforce a strict Content Security Policy on the Cognos Analytics web tier to limit inline script execution.
Reduce the population of users with authoring rights to Cognos content, minimizing the attacker pool.
Educate report reviewers to validate the origin of shared explorations before opening.

bash

# Example: sample WAF rule fragment to flag script-like payloads in Cognos requests
# (adapt to your WAF syntax and test in detection mode before enforcing)
SecRule REQUEST_URI "@contains /bi/v1/disp" \
  "chain,phase:2,deny,status:403,id:1002501,\
   msg:'Potential XSS payload in Cognos request (CVE-2024-25042)'"
  SecRule ARGS "@rx (?i)(<script|onerror=|onload=|javascript:)" "t:none,t:urlDecodeUni"