CVE-2026-34691
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 Forms JEE versions LTS SP1, 6.5.24.0 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, potentially gaining elevated access or control over the victim's account or session. 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 confidenceAdobe Experience Manager Forms JEE versions LTS SP1 and 6.5.24.0 and earlier contain a stored Cross-Site Scripting (XSS) vulnerability in form fields. Attackers can inject malicious JavaScript that persists in the application and executes when users view affected form pages, potentially hijacking sessions or gaining elevated account control. With a CVSS score of 9.3, this is a critical, network-exploitable issue requiring no authentication.
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= 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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/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 at /system/console/config or check the version.properties file in the AEM installation directory to determine the exact AEM versionAffected if The installed version is 6.5 or any version number less than or equal to 6.5.24.0
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Confirm AEM Forms JEE module is presentVerify the AEM Forms JEE add-on is installed by checking the Package Manager for Forms-related packages or accessing the AEM Forms consoleAffected if The AEM Forms JEE component is installed and active in the environment
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Check for enabled form fields without input validationReview form field configurations in AEM Forms workflow or Forms Designer to identify if input validation and output encoding controls are disabled or missingAffected if Form fields are configured to accept unvalidated user input without proper encoding
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Audit stored form data for malicious scriptsInspect stored form submissions, drafts, or saved data in the AEM repository for suspicious JavaScript tags, event handlers, or encoded script contentAffected if Malicious JavaScript code is found embedded in form field values in the repository
You are affected if running AEM version 6.5 or <= 6.5.24.0 with the AEM Forms JEE module enabled and form fields that lack input validation and output encoding protections.
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.
From vendor dataUpgrade Adobe Experience Manager Forms JEE to a version beyond 6.5.24.0 (or apply the relevant security patch) and implement input validation/sanitization on form fields to prevent XSS injection.
- Consultation2.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,864.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-34691 — 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-2026-34691 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