CVE-2025-47034: Adobe Experience Manager XSS Vulnerability

CVE-2025-47034 Overview

CVE-2025-47034 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Experience Manager (AEM) versions 6.5.22 and earlier, including the AEM Cloud Service. A low-privileged attacker can inject malicious JavaScript into vulnerable form fields. The payload executes in a victim's browser when they navigate to the page rendering the affected field. Exploitation requires user interaction and results in a scope change, meaning injected scripts can affect resources beyond the vulnerable component. Adobe published the fix in security bulletin APSB25-48.

Critical Impact
Authenticated attackers can persist malicious scripts in AEM form fields, leading to session compromise, credential theft, or unauthorized actions in the context of any user who views the affected page.

Affected Products

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

Discovery Timeline

2025-06-10 - CVE-2025-47034 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-47034

Vulnerability Analysis

The flaw is a stored XSS issue classified under CWE-79, Improper Neutralization of Input During Web Page Generation. Adobe Experience Manager fails to sanitize input submitted through certain form fields before persisting it and rendering it back to browsers. An authenticated attacker with low privileges submits a crafted payload containing JavaScript. The server stores the input and later returns it in HTML responses without adequate encoding. Any user who loads the affected page executes the attacker-controlled script within their session context. The scope change reflected in the CVSS vector indicates the injected code can reach content or data outside the vulnerable component's security boundary, such as authenticated administrator sessions.

Root Cause

The root cause is missing or insufficient output encoding of user-supplied field values within AEM form rendering paths. Input that should be treated as text is emitted into HTML contexts where it is parsed as executable script. The vulnerability persists across sessions because the payload is stored server-side.

Attack Vector

Exploitation requires network access to the AEM instance, a valid low-privileged account, and a victim who visits the page containing the tainted field. The attacker authenticates, submits a payload through the vulnerable form field, and waits for other users, including higher-privileged administrators, to load the page. The stored script then runs in the victim browser and can exfiltrate session cookies, perform actions on behalf of the victim, or pivot to further attacks against the AEM backend.

No public proof-of-concept exploit code is available. Refer to the Adobe Security Advisory APSB25-48 for vendor-supplied technical details.

Detection Methods for CVE-2025-47034

Indicators of Compromise

Form field values in AEM content repositories containing <script>, javascript:, onerror=, onload=, or encoded variants such as <script>.
Outbound HTTP requests from author or publish instances to unfamiliar domains initiated from rendered pages.
Unexpected session token transmissions or authenticated actions performed from atypical geolocations or user agents.

Detection Strategies

Audit JCR (Java Content Repository) nodes and form submissions for HTML or JavaScript syntax stored in text properties.
Inspect web server and dispatcher logs for POST requests to form endpoints containing suspicious payload patterns.
Deploy a Content Security Policy (CSP) in report-only mode to surface inline script executions originating from AEM-rendered pages.

Monitoring Recommendations

Enable AEM audit logging for content modifications and correlate form submissions with low-privileged accounts.
Monitor administrator session activity for unexpected DOM-initiated requests to /libs/ or /bin/ endpoints.
Alert on browser telemetry showing script execution from user-generated content contexts within AEM domains.

How to Mitigate CVE-2025-47034

Immediate Actions Required

Apply the Adobe security update referenced in APSB25-48 to all AEM 6.5 and AEM Cloud Service instances.
Review recently created or modified form field content for stored payloads and remove any injected scripts.
Restrict form-authoring privileges to trusted users and rotate session tokens for accounts that may have viewed compromised pages.

Patch Information

Adobe addressed CVE-2025-47034 in the security update documented in bulletin APSB25-48 for Adobe Experience Manager 6.5.22 and AEM Cloud Service. Administrators should upgrade to the fixed release listed in the advisory. Cloud Service customers receive the patch through the standard Adobe-managed update pipeline.

Workarounds

Configure the AEM dispatcher and reverse proxy to enforce a strict Content Security Policy that blocks inline script execution.
Apply input validation and output encoding filters at the web application firewall layer for known form submission endpoints.
Limit low-privileged user access to form authoring components until patching is complete.

bash

# Example CSP header to reduce stored XSS impact on AEM responses
Header always set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"