Is CVE-2026-123259 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-123259 being exploited in the wild.

How severe is CVE-2026-123259?

Medium severity, with a CVSS score of 5.4, published 10 November 2026.

Which products and versions are affected?

Adobe Experience Manager 6.5 Service Pack 25 and earlier; Adobe Experience Manager 6.5 LTS Service Pack 3 and earlier; Adobe Experience Manager Cloud Service 2026.10.29023 and earlier.

Is there a fix for CVE-2026-123259?

Yes: fixed in Adobe Experience Manager Cloud Service 2026.10.29251; AEM 6.5 Service Pack 23, 24, or 25 with Cumulative Hotfix for GRANITE-75052; AEM 6.5 LTS Service Pack 1, 2, or 3 with Cumulative Hotfix for GRANITE-75052. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-123259 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-123259?

Check whether you run Adobe Experience Manager 6.5, Adobe Experience Manager 6.5 LTS or Adobe Experience Manager Cloud Service at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-123259: Adobe Experience Manager stored XSS in form fields

CVE-2026-123259 · Severity: medium · CVSS 5.4 · Published 2026-11-10

Adobe Experience Manager is a content management platform used to build and manage enterprise websites and applications. A low-privileged attacker can inject malicious scripts into form fields that execute in the browsers of users who view those pages, potentially allowing account takeover or credential theft. The vulnerability requires user interaction—a victim must visit the compromised page—but affects a wide range of AEM versions.

Technologies: Adobe Experience Manager 6.5, Adobe Experience Manager 6.5 LTS, Adobe Experience Manager Cloud Service. Vendors: Adobe.

Quick answers

Is CVE-2026-123259 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-123259 being exploited in the wild.
How severe is CVE-2026-123259?: Medium severity, with a CVSS score of 5.4, published 10 November 2026.
Which products and versions are affected?: Adobe Experience Manager 6.5 Service Pack 25 and earlier; Adobe Experience Manager 6.5 LTS Service Pack 3 and earlier; Adobe Experience Manager Cloud Service 2026.10.29023 and earlier.
Is there a fix for CVE-2026-123259?: Yes: fixed in Adobe Experience Manager Cloud Service 2026.10.29251; AEM 6.5 Service Pack 23, 24, or 25 with Cumulative Hotfix for GRANITE-75052; AEM 6.5 LTS Service Pack 1, 2, or 3 with Cumulative Hotfix for GRANITE-75052. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-123259 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-123259?: Check whether you run Adobe Experience Manager 6.5, Adobe Experience Manager 6.5 LTS or Adobe Experience Manager Cloud Service at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: Adobe Experience Manager Cloud Service 2026.10.29251; AEM 6.5 Service Pack 23, 24, or 25 with Cumulative Hotfix for GRANITE-75052; AEM 6.5 LTS Service Pack 1, 2, or 3 with Cumulative Hotfix for GRANITE-75052

Technical details

A stored cross-site scripting (XSS) vulnerability in Adobe Experience Manager allows a low-privileged authenticated user to inject malicious JavaScript into vulnerable form fields; the payload is stored and executes in the browser of any user viewing the affected page. The attack requires both attacker and victim authentication or user interaction (CWE-79). Patches are available via service pack hotfixes or cloud service updates.

Affected products

Adobe Experience Manager Cloud Service 2026.10.29023 and earlier
Adobe Experience Manager 6.5 Service Pack 25 and earlier
Adobe Experience Manager 6.5 LTS Service Pack 3 and earlier

Timeline

2026-11-10: disclosed

References

https://www.adobe.com/trust/security/products/experience-manager/apsb26-189.html

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