CVE-2026-48252 experience manager vulnerability
Adobe Experience Manager is affected by a Missing Authentication for Critical Function vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction. Scope is changed.
Browse Authentication Bypass security risksQuick answer
adobe experience manager should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- AEM Cloud Service 2026.5.0 and earlier
Fixed versions
- AEM Cloud Service 2026.6.0
How to fix it
Adobe Experience Manager is affected by CVE-2026-48252, a missing authentication check on a critical function. An unauthenticated attacker can bypass a security control and gain unauthorized write access without user interaction. Confirm AEM as a Cloud Service has received release 2026.6.0 or later; Adobe says this CVE affects only the AEMaaCS releases indicated in APSB26-74. Prioritize internet-facing and shared production systems first.
- Inventory every Adobe Experience Manager deployment, version, exposed endpoint, environment, and owner.
- Inventory AEM Cloud Service, AEM 6.5 LTS, and AEM 6.5 deployments, then match each one to the affected products in APSB26-74.
- Confirm AEM as a Cloud Service has received release 2026.6.0 or later; Adobe says this CVE affects only the AEMaaCS releases indicated in APSB26-74.
- Adobe lists no workaround in APSB26-74. Until the update is complete, block the affected write route at the dispatcher or WAF and limit public access to AEM author and management interfaces.
- Review unauthenticated write requests, new or changed content, accounts, workflows, packages, and configuration.
- Remove unauthorized changes, revoke suspicious sessions, rotate affected secrets, and restore the instance from a known-good state if integrity cannot be proven.
- Restart or redeploy affected AEM services as required by Adobe, clear AEM and CDN caches, and keep temporary controls until validation is complete.
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Verify the fix
- Confirm AEM Cloud Service is on release 2026.6.0 or later and the deployment record matches APSB26-74.
- Confirm an unauthenticated safe test cannot call the affected write function or change AEM content.
- Confirm AEM Author and Publish exposure, Dispatcher and CDN/WAF rules, outbound access, and service-account permissions follow the deployment's approved security baseline.
- Review logs after remediation for continued exploit attempts or signs that the issue was used before the fix.
- Rerun the relevant dependency, platform, vendor, or Fixnx security check and document the result, affected assets, change record, and cleanup evidence for CVE-2026-48252.
Related categories
Related security risks
More published guidance from the same primary category.
Trusted references
FAQ
What is affected by CVE-2026-48252?
adobe experience manager versions listed as affected should be reviewed: AEM Cloud Service 2026.5.0 and earlier.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
How are Fixnx security risk categories chosen?
Fixnx keeps one canonical risk page and assigns only broad, relevant categories such as ecosystem, technology area, or vulnerability class.