CVE-2025-46997: Adobe Experience Manager XSS Vulnerability

CVE-2025-46997 Overview

CVE-2025-46997 is a stored Cross-Site Scripting (XSS) vulnerability [CWE-79] affecting Adobe Experience Manager (AEM) versions 6.5.22 and earlier. A low-privileged attacker can inject malicious JavaScript into vulnerable form fields. When a victim browses to a page containing the affected field, the injected script executes in the victim's browser context. Exploitation requires user interaction and results in a scope change, meaning the injected script can affect resources beyond the vulnerable component. The flaw impacts both on-premises AEM deployments and AEM Cloud Service. Adobe addressed the issue in Security Bulletin APSB25-48.

Critical Impact

Authenticated attackers can persist malicious JavaScript inside AEM form fields, executing arbitrary script in visitor browsers and enabling session theft, credential harvesting, or unauthorized actions on behalf of the victim.

Affected Products

• Adobe Experience Manager 6.5.22 and earlier (on-premises)
• Adobe Experience Manager Cloud Service (affected releases per APSB25-48)
• AEM Forms component (vulnerable form field handling)

Discovery Timeline

• 2025-06-10 - CVE-2025-46997 published to NVD
• 2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-46997

Vulnerability Analysis

The vulnerability is a stored XSS flaw in Adobe Experience Manager form field processing. The application accepts user-controlled input into form fields without adequately sanitizing or encoding script content before persisting it. Because the payload is stored server-side, every visitor rendering the affected page receives the malicious script.

Exploitation requires an authenticated account with low privileges, such as a content author role, plus victim interaction with the compromised page. The scope change indicates the injected script executes with access to resources or origins beyond the immediate AEM component, increasing the potential blast radius across integrated applications.

Stored XSS in a content management platform like AEM is particularly consequential. Attackers can target site editors, administrators, or end users of any web property served by the AEM instance, turning a single injection into repeatable compromise of many browser sessions.

Root Cause

The root cause is improper neutralization of input during web page generation [CWE-79] within AEM form field handling. The affected code path fails to enforce output encoding or input validation on JavaScript-bearing values before storing them or rendering them back to users. Adobe's advisory does not publicly enumerate the specific component paths.

Attack Vector

The attack proceeds over the network. An authenticated attacker submits crafted content containing JavaScript into a vulnerable AEM form field. The payload is stored in the AEM repository. When any user, including higher-privileged administrators, navigates to a page that renders the tainted field, the browser parses and executes the attacker-supplied script. See the Adobe Security Bulletin APSB25-48 for vendor guidance.

Detection Methods for CVE-2025-46997

Indicators of Compromise

• Form field values or JCR node properties containing <script>, javascript:, onerror=, onload=, or encoded variants such as <script>.
• Unexpected outbound requests from author or publish instances to attacker-controlled domains sourced from rendered pages.
• AEM audit log entries showing content edits to form components from unusual user accounts or IP addresses.

Detection Strategies

• Query the JCR repository for stored properties containing HTML event handlers or script tags in form-related node types.
• Monitor web server and CDN logs for anomalous response bodies containing script payloads served from AEM-managed URLs.
• Deploy a Content Security Policy (CSP) in report-only mode to surface inline script violations tied to the vulnerable pages.

Monitoring Recommendations

• Enable and forward AEM access, error, and audit logs to a centralized SIEM for correlation with authentication events.
• Alert on content author account activity that includes bulk edits to form components or off-hours modifications.
• Track browser-side errors and CSP violation reports from public-facing pages served by AEM.

How to Mitigate CVE-2025-46997

Immediate Actions Required

• Upgrade Adobe Experience Manager to the fixed release identified in APSB25-48; AEM Cloud Service customers should confirm they are on a patched release.
• Audit existing form field content across authored pages for stored JavaScript payloads and remove any suspicious entries.
• Review and reduce privileges for content author accounts, enforcing least privilege on components that render user-controllable form fields.

Patch Information

Adobe published fixes in Security Bulletin APSB25-48 covering AEM 6.5.x on-premises builds and AEM Cloud Service. Administrators should apply the vendor-supplied service pack for AEM 6.5 and validate the running Cloud Service SDK version aligns with the patched release. Refer to the Adobe Security Bulletin APSB25-48 for exact version numbers and installation guidance.

Workarounds

• Enforce a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins.
• Place a Web Application Firewall (WAF) rule in front of AEM to filter script tags and JavaScript event handlers submitted to form endpoints.
• Restrict authoring access to trusted personnel and require multi-factor authentication for all content author and administrator accounts.

# Example CSP header for AEM dispatcher configuration
Header always set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"