CVE-2026-48258
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 6.5.24, 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 · moderate confidenceDOM-based Cross-Site Scripting vulnerability in Adobe Experience Manager versions 6.5.24, LTS SP1, 2026.04 and earlier. The vulnerability allows attackers to manipulate the DOM environment to execute malicious JavaScript within a victim's browser context. The 'scope changed' designation indicates the attack can impact resources outside the vulnerable component's origin.
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< 6.5.25.0< 2026.5.0= 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 System Information console at /system/console/status-productinfo or check the version.properties file in the crx-quickstart directoryAffected if The version displayed is below 6.5.25.0, below 2026.5.0, or shows exactly 6.5 (which includes 6.5.24, LTS SP1, and 2026.04)
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Confirm precise version numberNavigate to AEM Welcome page > Help > About Adobe Experience Manager, or query the Version MBean via JMX console at /system/console/jmx/com.adobe.granite%3Aversion%3D1Affected if The exact version matches any of the affected versions: 6.5.24, LTS SP1, 2026.04, or any 6.5.x version prior to 6.5.25.0
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Verify AEM deployment contextDetermine whether the AEM instance is accessible to external users by checking web server configuration, firewall rules, or load balancer settings that expose AEM ports (typically 4502 or 4503 for author, 80/443 for publish)Affected if AEM is externally accessible without proper network segmentation, as the XSS requires a victim to visit a malicious webpage
A user is affected if their installed AEM version is 6.5.24, LTS SP1, 2026.04, or any version lower than 6.5.25.0 or 2026.5.0, and the instance can be reached by users who could be tricked into visiting a crafted malicious page.
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 · scoped6.5.25.02026.5.0
Implement proper output encoding and input validation for DOM interactions, and consider Content Security Policy (CSP) headers to mitigate XSS execution. Identify and remediate the specific DOM manipulation point in the AEM application.
6.5.25.0 or later for LTS line; 2026.5.0 or later for 2026.x line
- Confirm current Adobe Experience Manager version by checking the product about page or system console
- Schedule a maintenance window for the upgrade
- Backup the current AEM instance including repository, configuration, and custom code
- Download Adobe Experience Manager 6.5.25.0 (or later 6.5.x LTS) or version 2026.5.0 (or later) from Adobe Software Distribution
- Stop the current AEM instance
- Install the new version following Adobe's standard upgrade documentation
- Verify the installation completed successfully
- Test critical workflows and templates that render user-generated content to confirm XSS protection is working
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-48258 — 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-2026-48258 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