What is the CVSS score of CVE-2026-48251?

CVE-2026-48251 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Adobe Experience Manager CVE-2026-48251

EUVD-2026-35636 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-06-09 psirt@adobe.com

GHSA-m966-rvw4-4qv3

XSS Adobe Experience Manager

5.4

CVSS 3.1 · Vendor: adobe

Severity by source

Vendor (adobe) PRIMARY

5.4 MEDIUM

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Primary rating from Vendor (adobe) · only source for this CVE.

CVSS VectorVendor: adobe

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Jun 09, 2026 - 19:13 vuln.today

DescriptionCVE.org

Adobe 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.

AnalysisAI

DOM-based Cross-Site Scripting in Adobe Experience Manager (AEM) versions 6.5.24, LTS SP1, 2026.04 and earlier allows an authenticated low-privileged attacker to inject and execute malicious JavaScript within a victim's browser by manipulating client-side DOM processing. The CVSS scope change (S:C) indicates the exploit can break out of the originating page's security context, enabling session hijacking or cross-origin actions against higher-privileged users. No public exploit identified at time of analysis, and this CVE is not currently listed in the CISA KEV catalog.

Technical ContextAI

Adobe Experience Manager is an enterprise-grade content management system used for web, digital asset, and forms management at scale. The vulnerability is rooted in CWE-79 (Improper Neutralization of Input During Web Page Generation - Cross-site Scripting), specifically the DOM-based variant where client-side JavaScript reads attacker-influenced data from the DOM (e.g., URL fragment, document.referrer, or similar sources) and writes it back to the page without sanitization - bypassing server-side input filtering entirely. Unlike reflected or stored XSS, DOM XSS execution is entirely client-side, making it harder to detect via WAF or server-side logging. The CVSS scope change (S:C) signals that the injected script can affect browser contexts beyond the AEM page's origin, enabling theft of cookies scoped to parent domains or abuse of browser-stored credentials. No CPE strings were provided in the input data; affected versions are drawn from the EUVD entry (Adobe Experience Manager ≤ 2026.04) and the Adobe PSIRT advisory APSB26-56.

RemediationAI

Apply the vendor-released patch per Adobe Security Bulletin APSB26-56 at https://helpx.adobe.com/security/products/experience-manager/apsb26-56.html. An exact fixed version number is not independently confirmed from the available input data beyond the advisory reference - consult APSB26-56 directly to identify the precise target version for your AEM track (6.5.x Service Pack, LTS, or AEM as a Cloud Service 2026.x release). If immediate patching is not possible, restrict AEM authoring and preview environments to known-trusted, authenticated users through network controls or VPN-gating, reducing the pool of potential attackers who could obtain the low-privilege account required (note: this does not eliminate the risk for existing authenticated users). Deploying or tightening a Content Security Policy (CSP) on AEM pages can limit the impact of DOM XSS by restricting inline script execution and allowed script sources; however, AEM's rich authoring components may require careful CSP tuning to avoid breaking legitimate editor functionality.