CVE-2025-47016: Adobe Experience Manager XSS Vulnerability

CVE-2025-47016 Overview

Adobe Experience Manager (AEM) versions 6.5.22 and earlier contain a stored Cross-Site Scripting (XSS) vulnerability [CWE-79] in form field handling. A low-privileged authenticated attacker can inject malicious JavaScript into vulnerable form fields. The payload executes in a victim's browser when they visit the affected page, requiring user interaction to trigger.

The flaw affects both on-premises AEM deployments and AEM Cloud Service. Adobe published the fix in Security Bulletin APSB25-48 on June 10, 2025.

Critical Impact
An authenticated attacker can persist JavaScript payloads in AEM form fields, enabling session hijacking, credential theft, or unauthorized actions in the browser context of authors and site visitors.

Affected Products

Adobe Experience Manager 6.5.22 and earlier (on-premises)
Adobe Experience Manager Cloud Service
AEM form field components rendering user-controlled input

Discovery Timeline

2025-06-10 - Adobe releases security patch via bulletin APSB25-48
2025-06-10 - CVE-2025-47016 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-47016

Vulnerability Analysis

CVE-2025-47016 is a stored XSS vulnerability [CWE-79] in Adobe Experience Manager form field components. The application accepts input from an authenticated user with low privileges and persists that input without sufficient output encoding. When any subsequent user renders the page containing the vulnerable field, the browser interprets the injected content as executable JavaScript.

Stored XSS in a content management platform like AEM extends the blast radius beyond a single session. Payloads placed in shared forms or authored components affect every downstream visitor, including higher-privileged authors and administrators. The scope-change characteristic reflects that injected script executes under the origin of the AEM site rather than the attacker's context.

User interaction is required because the victim must navigate to the page containing the malicious field. However, in typical AEM workflows this occurs routinely as content moves through review and publication stages.

Root Cause

The root cause is missing or insufficient sanitization of user-supplied form field values before they are stored and later rendered in HTML responses. AEM's rendering layer emits the persisted string into the DOM without HTML-entity encoding or contextual escaping, allowing <script> tags or event-handler attributes to reach the browser intact.

Attack Vector

An attacker with low-privileged authenticated access to AEM authoring authors a form or edits a form field, injecting a JavaScript payload into a field the application later renders unescaped. When a victim opens the page, the script executes in their browser session under the AEM site's origin. Consult the Adobe Security Bulletin APSB25-48 for component-level details.

Detection Methods for CVE-2025-47016

Indicators of Compromise

Form field values containing HTML tags such as <script>, <img onerror=>, or <svg onload=> persisted in the JCR repository
Unexpected outbound requests from author or publish instances to attacker-controlled domains
AEM audit log entries showing form or component edits from low-privileged accounts followed by anomalous page views
Browser console errors or Content Security Policy (CSP) violations reported on authored pages

Detection Strategies

Scan JCR content nodes for stored payloads matching common XSS patterns in form field properties
Review dispatcher and access logs for POST requests to form authoring endpoints originating from low-privileged users
Correlate content modification events with subsequent unusual authentication or session activity

Monitoring Recommendations

Enable and centrally collect AEM access, request, and audit logs for the authoring and publish tiers
Alert on CSP violation reports that indicate inline script execution on pages containing form components
Monitor privileged author sessions for anomalous outbound network activity indicative of session token exfiltration

How to Mitigate CVE-2025-47016

Immediate Actions Required

Upgrade Adobe Experience Manager on-premises deployments to a version later than 6.5.22 as directed in Adobe Security Bulletin APSB25-48
Confirm AEM Cloud Service instances are running the patched release delivered by Adobe
Audit existing form fields and stored content for pre-existing XSS payloads before returning affected pages to production
Review and tighten role assignments to limit authoring privileges to trusted users

Patch Information

Adobe addressed CVE-2025-47016 in the AEM 6.5.23 service pack and in the corresponding AEM Cloud Service release. Refer to Adobe Security Bulletin APSB25-48 for the exact package versions, download locations, and installation instructions.

Workarounds

Deploy a Content Security Policy that restricts inline script execution and disallows untrusted script sources on AEM-rendered pages
Place a web application firewall (WAF) in front of AEM to filter requests containing HTML or JavaScript in form field parameters
Restrict access to form authoring components to a minimum set of trusted user accounts until the patch is applied

bash

# Example Content Security Policy header to reduce XSS impact on AEM pages
Content-Security-Policy: default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'; report-uri /csp-report