CVE-2026-27226
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 · uneditedAdobe Experience Manager versions 6.5.23 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by an attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.
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 confidenceAdobe Experience Manager versions 6.5.23 and earlier contain a stored Cross-Site Scripting (XSS) vulnerability. Attackers can inject malicious JavaScript into form fields, which persists in the system. When legitimate users view pages containing these compromised fields, the malicious script executes in their browsers, potentially enabling session hijacking, credential theft, or defacement.
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< 6.5.24.0< 2026.2.0= 6.5CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify installed AEM versionAccess the AEM Web Console (System > System Information) or check the file 'crx-quickstart/package.xml' in the AEM installation directory. The version is displayed in the 'Adobe Experience Manager' field.Affected if The installed version is 6.5.x where x <= 23, or the version string is below 6.5.24.0, or the version is below 2026.2.0.
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Determine if form components are in useNavigate to the AEM Assets or Sites console and search for pages containing form components (look for components with 'form' in the name). Check the Edit dialog of identified form components to see which fields accept user input.Affected if Form components with user input fields are present and accessible to untrusted users.
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Inspect form field data for suspicious patternsUse CRXDE Lite (accessible at /crx/de) to query the repository. Navigate to /content or the path where form data is stored. Examine the jcr:content nodes for form fields and inspect the values stored in the respective properties.Affected if Any stored values in form fields contain HTML script tags, javascript: URIs, or event handler attributes (onerror, onload, onclick, etc.).
A user is affected if their AEM version is 6.5.23 or earlier (or below 2026.2.0) AND untrusted users can submit input to form fields that is later rendered without proper sanitization.
Generated from the published advisory. Verify against your own configuration.
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 · scoped6.5.24.02026.2.0
Update Adobe Experience Manager to version 6.5.24 or later to patch the vulnerability. Additionally, implement input validation and output encoding on form fields, and consider Content Security Policy (CSP) headers to mitigate XSS attacks.
6.5.24.0 or 2026.2.0+
- 1. Identify the current Adobe Experience Manager version in use
- 2. Plan and schedule a maintenance window for the upgrade
- 3. Perform a full backup of the AEM instance including repository, configurations, and custom code
- 4. Upgrade Adobe Experience Manager to version 6.5.24.0 or later (or to 2026.2.0+ if using the newer release train)
- 5. Verify the upgrade was successful by checking the AEM version in the About Adobe Experience Manager console
- 6. Test that the XSS vulnerability is patched by attempting to inject malicious scripts into vulnerable form fields
- 7. After successful validation, deploy the upgraded instance to production
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-27226 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-27226 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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