Horizon Alert
Summary of the vulnerability and why it matters
This vulnerability in Adobe Experience Manager could allow an attacker to execute malicious code in a user's browser by tricking them into visiting a specially crafted web page. This could lead to the takeover of user sessions, significantly impacting confidentiality and integrity.
- Malicious scripts can run in user browsers.
- Session takeover risk impacts sensitive data.
- Confirm relevance and exposure for this system.
Attack Path
How an attacker could exploit the issue
An attacker can target users by creating a malicious web page containing specially crafted scripts. When a user visits this page, the scripts are executed within their browser. This allows the attacker to potentially take over the user's session, leading to unauthorized access and modification of data.
- Entry: Attacker crafts a malicious page.
- Trigger: Victim visits the crafted page.
- Risk: Session takeover, data compromise.
Live Threat
Current exploitation, exposure, and threat context
When supported by the advisory, this vulnerability could allow an attacker to execute arbitrary code in a victim's browser by tricking them into visiting a malicious page, potentially leading to session takeover.
- Web application sessions at risk.
- Malicious scripts executed in user's browser.
- Session takeover may occur.
Operational Fix
Recommended remediation, mitigation, and detection steps
Technical leaders and security teams should coordinate with application owners to identify all Adobe Experience Manager instances. Prioritize instances exposed to the internet or accessible by untrusted users, as these pose the highest risk for session takeover and data compromise. Once critical assets are identified, plan remediation or mitigating actions during the next maintenance window.
- Application owners should lead remediation efforts.
- Verify internet-facing or externally accessible instances.
- Plan and execute mitigation or patching.
