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Adobe Experience Manager CVE-2025-64562

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/manipulated page
  3. Exploit
    Lure victim to interact
  4. Execution
    DOM reflects and executes script
  5. Impact
    Run script in victim browser 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 an authenticated attacker holding a low-privilege AEM account (PR:L) and requires victim user interaction (UI:R) - specifically, the victim visiting an attacker-crafted URL or interacting with a manipulated web page that triggers the DOM-based script injection. Limiting factors: the need for valid low-privilege credentials narrows the attacker pool to insiders or compromised accounts, and the dependence on victim interaction means it cannot be exploited silently or at scale. Affected deployments are AEM 6.5.23 and earlier (including 6.5 LTS) and AEM as a Cloud Service per the CPE data; environments already patched to a later 6.5.x build are not affected.

Impact

This is a moderate, not top-priority, issue whose signals are consistent and point to limited real-world urgency. The CVSS 3.1 base score of 5.4 (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) reflects a network-reachable but authenticated (PR:L) flaw that additionally requires victim user interaction (UI:R), with only Low confidentiality and integrity impact and a scope change (S:C) typical of XSS executing in another security context (the victim's browser). EPSS reinforces low urgency: 0.25% exploitation probability at the 15th percentile indicates it is among the less-likely-to-be-exploited CVEs. There is no CISA KEV listing and no public proof-of-concept referenced, so exploitation status is 'no public exploit identified at time of analysis.' The signals do not conflict - low EPSS, no KEV, no POC, and a moderate CVSS all agree this is a real but low-to-moderate priority issue rather than an emergency. The main caveat is that DOM-based XSS requiring low privileges plus user interaction is more useful in targeted phishing/social-engineering chains than in mass automated exploitation.

Exploit ScenarioDerived

A low-privileged authenticated AEM user crafts a URL or manipulated page that injects malicious script which is reflected into the DOM and executed in a victim's browser when they visit the link or interact with the page. Because exploitation requires both attacker authentication and victim interaction (UI:R), a realistic path is an insider or compromised low-privilege account luring a higher-privileged author/administrator into the crafted URL to run script in their session. No public exploit code is referenced at the 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 15, 2026

DOM-based cross-site scripting in Adobe Experience Manager 6.5.23 and earlier - covering 6.5 LTS and AEM as a Cloud Service per the affected CPE data - allows an attacker holding a valid low-privilege AEM account to execute malicious script in a victim's browser, but only after the victim is induced to visit a crafted URL or interact with a manipulated web page. The CVSS vector (PR:L/UI:R, S:C, C:L/I:L/A:N, base 5.4) confirms both the authenticated, low-privilege prerequisite and the mandatory user interaction, so the issue cannot be triggered silently or at scale and the attacker pool is narrowed to insiders or compromised accounts. No public exploit code has been identified at time of analysis, EPSS is a low 0.25% (15th percentile), and there is no CISA KEV listing, which together support a moderate, not top-priority rating rather than an emergency response.

RemediationAI

Remediation is to move off the affected 6.5.23-and-earlier range by upgrading on-premise Adobe Experience Manager 6.5 installations to the latest fixed 6.5.x build documented in Adobe advisory APSB25-115 (https://helpx.adobe.com/security/products/experience-manager/apsb25-115.html); exact fixed version numbers should be taken from that advisory rather than assumed. AEM as a Cloud Service is managed by Adobe and is typically remediated through Adobe's automatic service updates, so Cloud Service customers should confirm their tenant has received the fix rather than applying a package themselves. Patch status from the available data: patch available per vendor advisory, with the specific fixed build documented in APSB25-115. Where immediate upgrade is not possible, effective compensating controls are: enforce a strict Content Security Policy that blocks inline and untrusted script sources (trade-off: a CSP strong enough to stop DOM XSS frequently breaks legitimate AEM client libraries and inline component scripting, so it must be tested against author and publish functionality); deploy a reverse proxy or WAF rule set that normalizes and filters suspicious values in URL fragments and query strings on the publish tier (trade-off: DOM XSS payloads are often never transmitted in a filterable server request, so this catches only a subset and may generate false positives on legitimate deep-link parameters); and tightly restrict and audit which accounts hold even low-privilege AEM author/publish access, since PR:L means valid credentials are the first prerequisite an attacker must obtain (trade-off: reduces convenience for content contributors and requires ongoing account lifecycle management). Standard user awareness around clicking unsolicited links mitigates the UI:R requirement but should not be relied upon as the primary control.

Affects your stack

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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 DOM-based cross-site scripting issue (CWE-79) in Adobe Experience Manager, meaning the injection occurs entirely in the browser: attacker-influenced input is read from a client-side source (such as a URL fragment, query parameter, or DOM value) and written into an unsafe sink by AEM's client-side JavaScript, so the malicious script executes in the victim's browser context rather than being reflected or stored by the server. Because the execution is client-side, server-side output encoding alone does not neutralize it and traditional reflected/stored XSS filters may never see the payload. The affected CPE strings - cpe:2.3:a:adobe:experience_manager with the generic, aem_cloud_service, and 6.5 lts product markers - identify three deployment tracks: on-premise AEM 6.5.x up to and including 6.5.23, the 6.5 LTS line, and the fully managed AEM as a Cloud Service. The CVSS scope change (S:C) reflects that script running in the victim's authenticated AEM session can act outside the vulnerable component's original security authority, though only with low confidentiality and integrity impact and no availability impact. Adobe's Product Security Incident Response Team (psirt@adobe.com) published advisory APSB25-115 as the authoritative vendor source for this issue.

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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-reachable DOM XSS needing a low-privilege account (PR:L) and victim interaction (UI:R); scope changes to the victim browser (S:C) with Low 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:P/VC:L/VI:L/VA:N/SC:N/SI:N/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 commercial and government sites
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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