CVE-2026-27254
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 a low-privileged 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 confidenceStored Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager versions 6.5.23 and earlier allows low-privileged attackers to inject malicious JavaScript into form fields. The malicious payload persists in the system and executes when users view the affected pages.
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< 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 Welcome page or use the system information console (Navigation > Tools > Operations > Diagnosis > Version Info) to confirm the exact AEM version numberAffected if The version is 6.5.23 or earlier, any 6.5.x version below 6.5.24, or any version below 2026.2.0
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Verify form field input handlingReview custom form components or adaptive forms in your AEM instance that accept user-submitted data. Inspect the form field configuration dialogs for the Content Services or adaptive form components to identify where user input is capturedAffected if Form components exist that accept user input without documented input validation or output encoding controls
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Check for custom form submission endpointsExamine any custom form models, submit actions, or workflow steps that process form field submissions. Look for custom Java code or sling models handling form data persistenceAffected if Custom form handling code exists that does not implement sanitization or encoding on stored form values
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Inspect content repositories for user-generated form dataUse CRXDE Lite (accessible at /crx/de) to browse content nodes under /content or custom form submission paths. Examine the stored values in form field nodes for any raw or unencoded contentAffected if Form submission content nodes exist under /content or custom paths with user-supplied data that may contain script tags or event handlers
You are affected if your AEM version is 6.5.23 or earlier, any 6.5.x version below 6.5.24, or any version below 2026.2.0 AND your instance has custom or adaptive forms that accept user input without proper input validation and output encoding.
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 · scoped6.5.242026.2.0
Upgrade Adobe Experience Manager to version 6.5.24 or later to receive the security patch. Additionally, implement input validation and output encoding on form fields as a defense-in-depth measure.
6.5.24 or later for AEM 6.5; 2026.2.0 or later for AEM 2026/cloud releases
- Review Adobe Experience Manager release notes for versions 6.5.24 and 2026.2.0 to confirm security fix inclusion
- Plan and schedule the upgrade following standard AEM maintenance procedures
- Back up the current AEM instance including repository, database, and configurations
- Test the upgrade in a non-production environment
- Execute the upgrade to version 6.5.24 or later (for AEM 6.5) or 2026.2.0 or later (for AEM cloud/2026 releases)
- Validate the XSS vulnerability is remediated by testing the affected form fields
- Deploy the upgraded version to production
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-27254 — 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-2026-27254 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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- 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