External risk intelligence

Adobe Experience Manager Stored Cross-Site Scripting Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-106630

Adobe Experience Manager is widely deployed as an internet-facing content management system or web application platform. Stored XSS vulnerabilities in such platforms frequently affect public-facing forms or pages, making them reachable by users accessing the site over the internet.

Cross-site Scripting

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

Adobe Experience Manager is vulnerable to a stored Cross-Site Scripting (XSS) flaw, allowing attackers to embed malicious scripts into form fields. This could lead to the execution of harmful JavaScript in a user's browser, potentially compromising their account or session when they access a compromised page.

Attackers can inject scripts into forms.
Compromised sessions may lead to unauthorized access.
Confirm relevance and exposure to Adobe Experience Manager.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by crafting a malicious link or form that, when visited by a victim, injects harmful scripts into specific fields within Adobe Experience Manager. This could allow the attacker to execute arbitrary JavaScript in the victim's browser.

Requires victim interaction.
Injects scripts into form fields.
Allows elevated account access.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an attacker to inject malicious scripts into form fields within Adobe Experience Manager. When a user visits a page with an affected form field, these scripts could execute in their browser, potentially leading to unauthorized access or control over their session.

User session data and account control.
Malicious scripts executed in victim's browser.
Unauthorized session access or account control.

Operational Fix

Recommended remediation, mitigation, and detection steps

This stored Cross-Site Scripting vulnerability in Adobe Experience Manager requires immediate attention from teams managing web applications and content delivery. The first practical step is to identify all instances of Adobe Experience Manager, determine their internet reachability and business criticality, and then pinpoint the accountable owner for each instance to prioritize remediation efforts.

Application owners should manage remediation.
Verify internet-facing form field exposure.
Plan vendor coordination for fixes.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Adobe Experience Manager?

Adobe Experience Manager is a comprehensive content management system used by organizations to build, manage, and deliver websites, mobile apps, and digital forms. It acts as a centralized platform for digital asset management and personalized marketing experiences, allowing teams to coordinate content across various web channels.

How does CVE-2026-106630 work?

This vulnerability is classified as CWE-79, or Stored Cross-Site Scripting (XSS). It occurs when an application improperly sanitizes user-supplied data before saving it. In this case, an attacker can store malicious JavaScript code within specific form fields; when other users view that content, the browser inadvertently runs the malicious script.

Do I need to be logged in to trigger this bug?

Not necessarily. The vulnerability relies on the application storing malicious input in a form field. It is not triggered by simply having an account or browsing the site generally; rather, the malicious script executes when a victim navigates to the specific page or component where the compromised form data is displayed.

Is my instance at risk if it is internal only?

While the vulnerability is technical in nature, Halo Surface Signal notes that Adobe Experience Manager is often deployed as an internet-facing platform. If your instance is internal, the risk is lower because attackers cannot easily reach the forms from the public internet. However, any user with internal access could still potentially exploit the flaw.

When should I prioritize fixing this vulnerability?

You should prioritize this as soon as you identify where Adobe Experience Manager is deployed within your infrastructure. Start by locating all instances, determining which ones are accessible to the public, and identifying the internal owners responsible for these systems to coordinate the application of vendor-provided updates.

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.