Improper Restriction of XML External Entity Reference in Adobe Experience Manager
CVE-2026-90531

9.6CRITICAL

Key Information:

Vendor

Adobe
Status
Adobe Experience Manager As A Cloud Service
Adobe Experience Manager 6.5 Lts
Adobe Experience Manager 6.5
Vendor
CVE Published:
13 October 2026

What is CVE-2026-90531?

Adobe Experience Manager is susceptible to an Improper Restriction of XML External Entity Reference (XXE) vulnerability. This security flaw may enable a low-privileged attacker to escalate their privileges, potentially granting them access to sensitive internal resources without requiring any user interaction. This vulnerability alters the scope of security, making it critical for affected users to apply necessary patches and to be vigilant in monitoring access to their systems.

Affected Version(s)

Adobe Experience Manager 6.5 0 <= 6.5.25

Adobe Experience Manager 6.5 LTS 0 <= 6.5 LTS SP3

Adobe Experience Manager as a Cloud Service 0 <= 2026.9.28187

References

https://helpx.adobe.com/security/products/experience-mana...
vendor-advisory

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.