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Adobe Experience Manager CVE-2025-64565

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2025-12-10 psirt@adobe.com
5.4
CVSS 3.1 · Vendor: adobe
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privileged AEM account
  2. Delivery
    Craft malicious URL with DOM XSS payload
  3. Exploit
    Lure victim to visit crafted URL
  4. Execution
    Script executes in victim browser context
  5. Impact
    Hijack victim session or perform actions as victim

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires a low-privileged authenticated account on the target Adobe Experience Manager instance (CVSS PR:L) AND victim user interaction (UI:R) - specifically the victim visiting an attacker-crafted URL or interacting with a manipulated web page, per the description. Affected deployments are AEM 6.5.23 and earlier (including AEM 6.5 LTS and, per the CPE list, AEM Cloud Service builds). Limiting factors that reduce realistic risk: the attacker cannot act purely remotely-unauthenticated (an account is needed), the victim must take an action, and impact is confined to limited confidentiality/integrity in the browser context with no availability impact. These constraints make opportunistic mass exploitation unlikely and favor targeted social-engineering-style delivery.

Impact

This is a moderate-severity (CVSS 5.4), low-priority issue by most signals. The CVSS vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) indicates network-reachable but constrained exploitation: it requires a low-privileged authenticated account (PR:L) and victim user interaction (UI:R), with only limited confidentiality and integrity impact and no availability impact - consistent with a DOM-based XSS. EPSS corroborates low real-world risk at 0.25% (15th percentile), and there is no CISA KEV listing and no public exploit identified at time of analysis. No SSVC decision data was provided in the input. Signals are internally consistent - there is no conflict between the CVSS vector and the description (both agree exploitation needs a low-privileged actor plus user interaction). The scope change (S:C) is the one factor that elevates this slightly above a trivial self-XSS, reflecting script execution in the victim's browser context rather than the vulnerable component. Overall this is a genuine but non-urgent flaw that should be patched on a normal cycle rather than treated as an emergency.

Exploit ScenarioDerived

A low-privileged authenticated AEM user crafts a malicious URL (or manipulated page) that injects attacker-controlled script into the DOM. When a victim (e.g., a content author or administrator) visits the crafted URL or interacts with the manipulated page, the script executes in their browser session within the AEM origin, potentially stealing session context or performing actions as the victim. No public exploit code was identified at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 08, 2026

DOM-based cross-site scripting (XSS) in Adobe Experience Manager 6.5.23 and earlier permits a low-privileged authenticated attacker to execute arbitrary JavaScript in a victim's browser when the victim visits a crafted URL or interacts with a manipulated page. Exploitation requires both an authenticated account (PR:L) and user interaction (UI:R), limiting the impact to limited confidentiality and integrity changes within the browser (CVSS 5.4). No public exploit code or active exploitation has been identified; EPSS is 0.25% (15th percentile), indicating a low likelihood of exploitation.

RemediationAI

Apply the vendor-released fix referenced in Adobe security bulletin APSB25-115 (https://helpx.adobe.com/security/products/experience-manager/apsb25-115.html). Adobe has provided patched versions for AEM; consult the bulletin for the exact version applicable to your deployment (typically a hotfix or service pack for 6.5.23 and earlier). AEM Cloud Service customers receive automatic updates. If immediate patching is not possible, mitigate the risk by enforcing a strict Content Security Policy (CSP) to restrict inline script execution (though this may break legitimate functionality), validating and sanitizing all URL parameters on the client side, and educating users to avoid clicking untrusted links. Since exploitation requires an authenticated account, enforce least privilege and monitor for anomalous user activity.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This is a DOM-based XSS (CWE-79) in Adobe Experience Manager. DOM-based XSS occurs when client-side JavaScript reads data from an attacker-controllable source (e.g., URL parameters, fragment identifiers) and writes it to a sink that executes code (e.g., innerHTML, document.write) without proper sanitization. The CVSS vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) indicates network exploitation, low complexity, low privileges required (authenticated), user interaction required, and scope change (the vulnerable component affects the browser context). The CPE data identifies affected products as all versions of Adobe Experience Manager (cpe:2.3:a:adobe:experience_manager:*:*:*:*:-:*:*:*), including AEM Cloud Service (cpe:2.3:a:adobe:experience_manager:*:*:*:*:aem_cloud_service:*:*:*) and AEM 6.5 LTS (cpe:2.3:a:adobe:experience_manager:6.5:-:*:*:lts:*:*:*). This suggests that the vulnerability resides in a core AEM component or library present across deployment models. A successful exploit could allow the attacker to steal session tokens, perform actions as the victim, or deface content, but the limited CVSS impact scores (C:L/I:L/A:N) indicate that the scope is confined to the browser and does not compromise the server.

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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
vuln.today AI 5.4 MEDIUM

Network-delivered DOM XSS needing a low-privileged account (PR:L) and victim interaction (UI:R); script runs cross-context (S:C) with limited C/I and no availability impact.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (adobe).

CVSS VectorVendor: adobe

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionCVE.org

Adobe Experience Manager versions 6.5.23 and earlier are affected by a DOM-based Cross-Site Scripting (XSS) vulnerability that could be exploited by a low privileged attacker to execute malicious scripts in the context of the victim's browser. Exploitation of this issue requires user interaction, such as visiting a crafted URL or interacting with a manipulated web page.

Threat Intelligence Overview

EPSS Score
0.2%
Top 85% exploitable
Prevalence
High
widely deployed enterprise CMS across large organizations
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +27
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:adobe:experience_manager:*:*:*:*:-:*:*:*
cpe:2.3:a:adobe:experience_manager:*:*:*:*:aem_cloud_service:*:*:*
cpe:2.3:a:adobe:experience_manager:6.5:-:*:*:lts:*:*:*
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