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Experience ManagerApplication · Adobe

CVE-2026-48256

MEDIUM · 5.4 CVSS v3.1 Published 2026-06-09
Fix available
A fix is available. Upgrade to 6.5.25.0 / 2026.5.0 or later.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Adobe Experience Manager versions 6.5.24, LTS SP1, 2026.04 and earlier are affected by a DOM-based Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this issue by manipulating the DOM environment to execute malicious JavaScript within the context of the victim's browser. Exploitation of this issue requires user interaction in that a victim must visit a crafted webpage. Scope is changed.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A DOM-based Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager allows attackers to manipulate the DOM environment to execute malicious JavaScript within a victim's browser. Exploitation requires user interaction where the victim must visit a crafted webpage. The CVSS scope is changed, indicating the vulnerability impacts components beyond the vulnerable component itself.

MitigationUpdate Adobe Experience Manager to version newer than 6.5.24, LTS SP1, or 2026.04 as provided by Adobe's security bulletin. Additionally, implement strict Content Security Policy (CSP) headers to mitigate XSS execution vectors.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Experience ManagerApplication
Affected:< 6.5.25.0< 2026.5.0= 6.5

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Determine installed AEM version
    Navigate to AEM Tools > Operations > Diagnosis > Version Info, or locate the version.properties file in the crx-quickstart folder. Alternatively, access /system/console/bundles.json (if permitted) to retrieve version metadata.
    Affected if The installed version is any AEM 6.5.x version below 6.5.25.0, or any version below 2026.5.0.
  2. Confirm AEM 6.5 baseline
    Check if the installation is the 6.5 release line by reviewing the major.minor version number in the version info.
    Affected if The version shows 6.5.x where x is less than 25 (e.g., 6.5.0 through 6.5.24).
  3. Verify if running 2026.x branch
    If the version begins with 2026, compare the full version number against 2026.5.0.
    Affected if The version is 2026.x where x is less than 5 (e.g., 2026.0 through 2026.4).

You are affected if your AEM instance is version 6.5.x before 6.5.25.0, or any version before 2026.5.0.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 6.5.25.0 / 2026.5.0 or later
Fixed in 6.5.25.02026.5.0
Interim mitigation

Update Adobe Experience Manager to version newer than 6.5.24, LTS SP1, or 2026.04 as provided by Adobe's security bulletin. Additionally, implement strict Content Security Policy (CSP) headers to mitigate XSS execution vectors.

Recommended fix High confidence

Upgrade to Adobe Experience Manager 6.5.25.0 (or later 6.5.x LTS) OR 2026.5.0 (or later calendar-year release)

  1. 1. Identify the current Adobe Experience Manager version by checking the system information in the AEM welcome page or via the version.json endpoint
  2. 2. Determine the appropriate upgrade path: If on 6.5.x LTS line, upgrade to 6.5.25.0 or later; if on the calendar-year release line, upgrade to 2026.5.0 or later
  3. 3. Schedule a maintenance window and create a full backup of the AEM instance including the repository, configuration, and any custom code
  4. 4. Test the upgrade in a non-production environment first to verify compatibility with custom components, integrations, and third-party dependencies
  5. 5. Install the appropriate fixed version (6.5.25.0+ or 2026.5.0+) following Adobe's standard upgrade documentation
  6. 6. After upgrade, verify that the DOM-based XSS vulnerability is remediated by reviewing the release notes and confirming the security patch is included
  7. 7. Validate that all author and publish instances are functioning correctly and that custom applications work as expected
  8. 8. Clear browser caches and test the application to ensure no residual XSS vectors remain
Caveat Standard AEM upgrade risks apply - custom components, workflows, and integrations should be tested for compatibility; major version jumps may require additional migration steps

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Experience Manager Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,120
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-48256 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data