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Adobe Experience Manager CVE-2025-64560

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 URL hitting vulnerable DOM sink
  3. Exploit
    Deliver crafted link to victim
  4. Execution
    Victim interacts and script executes
  5. Impact
    Hijack session or act in victim context

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 (1) a low-privileged authenticated account on the target Adobe Experience Manager instance (CVSS PR:L - this is NOT an unauthenticated flaw), and (2) victim user interaction, specifically the victim visiting an attacker-crafted URL or interacting with a manipulated web page (UI:R) that triggers the DOM-based script execution. The injected script runs only in the victim's browser within the AEM origin (scope change, S:C). These two combined prerequisites - valid credentials plus social-engineering of a victim to click or interact - are the primary factors limiting realistic exploitation; there is no impact on availability and no server-side code execution. Affected deployments include AEM 6.5.23 and earlier, AEM 6.5 LTS, and AEM as a Cloud Service per the provided CPEs.

Impact

This is a moderate-severity, low-priority issue rather than an urgent threat. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, base 5.4) describes a network-reachable DOM-based XSS that nonetheless requires BOTH low-level authenticated privileges (PR:L) AND victim user interaction (UI:R), which materially limits automatable, large-scale exploitation. The EPSS score of 0.25% (15th percentile) is low and consistent with the absence of any public exploit code and the lack of CISA KEV listing - there is no public exploit identified at time of analysis and no evidence of active exploitation. No SSVC decision data was provided in the input, so exploitation-status/automatable/technical-impact cannot be cross-referenced from that framework. All signals align downward: the only elevating factor is the scope change (S:C), reflecting that injected script executes in the victim's browser context outside the vulnerable component, but impact is bounded to Low confidentiality and Low integrity with no availability effect. Net: a legitimate issue to patch on a normal cycle, not an emergency.

Exploit ScenarioDerived

A low-privileged authenticated AEM user (e.g., a content author or a user with limited CMS access) crafts a malicious URL or manipulated page that injects script into a vulnerable DOM sink. When a victim - typically a higher-privileged administrator or another user - visits the crafted URL or interacts with the manipulated page, the script executes in their browser session within the AEM origin. No public proof-of-concept exploit has been identified at time of analysis, and the requirement for both authentication and user interaction raises the practical bar.

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 14, 2026

DOM-based cross-site scripting in Adobe Experience Manager 6.5.23 and earlier, AEM 6.5 LTS, and AEM as a Cloud Service allows a low-privileged authenticated attacker to execute malicious script in a victim’s browser when the victim visits a crafted URL or interacts with a manipulated page. Both a valid low-privileged account and victim interaction are required, and impact is limited to client-side script execution within the AEM origin with no availability impact or server-side code execution. EPSS is low (0.25%) and no public exploit identified at time of analysis.

RemediationAI

Apply the vendor fix referenced in Adobe security advisory APSB25-115, upgrading affected AEM deployments to the current fixed release; the provided input does not specify an exact patched version, so verify the applicable fixed build in the advisory before upgrading. If immediate upgrade is not possible, restrict creation and use of low-privileged AEM accounts to trusted users, enforce least privilege on author and publish instances, and consider a Content Security Policy or WAF rule that blocks inline or untrusted script execution for the AEM origin, accepting that such controls can cause false positives or break legitimate AEM UI functionality and do not replace patching. User interaction is required, so awareness around crafted URLs and manipulated pages can reduce exposure but is not a complete mitigation.

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

The flaw is a CWE-79 cross-site scripting issue with a DOM-based execution path, meaning attacker-controlled input is processed by client-side JavaScript and written into the DOM rather than being reflected or stored by the server. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N indicates network reachability, low attack complexity, a low-privileged authenticated account requirement, and mandatory user interaction, with scope change because script executes in the victim’s browser within the AEM origin. CPE data identifies affected Adobe Experience Manager product families including generic AEM, AEM as a Cloud Service, and AEM 6.5 LTS; the advisory is Adobe APSB25-115.

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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

Authenticated low-privilege actor (PR:L) injects script executed after victim interaction (UI:R) in the victim's browser outside AEM's component (S:C), yielding Low C/I and no A 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:N/VI:N/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 and government
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
High

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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