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Adobe Experience Manager CVE-2025-64583

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/page with DOM payload
  3. Exploit
    Lure victim to interact
  4. Execution
    Script executes in victim browser
  5. Impact
    Hijack session or act 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 an authenticated low-privileged attacker (CVSS PR:L) on an affected Adobe Experience Manager instance (version 6.5.23 or earlier, including the AEM 6.5 LTS and listed Cloud Service / on-prem configurations), plus victim user interaction (UI:R) - the victim must visit an attacker-crafted URL or interact with a manipulated web page for the DOM-based script to execute in their browser. These two factors - the need for a valid low-privilege account and the reliance on a victim actively following a crafted link - are the primary limiting factors and substantially reduce realistic risk versus an unauthenticated, no-interaction flaw. No non-default configuration prerequisite is stated in the description.

Impact

This is a moderate-severity, low-priority issue rather than an urgent threat. The CVSS 3.1 score of 5.4 (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) reflects a DOM-based XSS requiring both low-level authentication (PR:L) and user interaction (UI:R), with only Low confidentiality and integrity impact and no availability impact - the scope change (S:C) accounts for script execution crossing into the victim's browser context. Corroborating signals all point low: EPSS is 0.25% (15th percentile), indicating very low near-term exploitation probability, and the CVE is NOT in CISA KEV with no public POC identified, so there is no evidence of active exploitation or weaponization. The signals are internally consistent - no conflict between the CVSS network vector and the description, which confirms remote delivery via a crafted URL or manipulated page. No SSVC decision data was supplied in the input. Net: a legitimate flaw worth patching in a maintenance cycle, but not a drop-everything priority; the authentication plus user-interaction requirements meaningfully constrain real-world exploitability.

Exploit ScenarioDerived

A low-privileged authenticated user (e.g. a content author) crafts a malicious URL or manipulated page that, when visited by a higher-value victim such as an AEM administrator, triggers DOM-based execution of attacker-controlled JavaScript in the victim's browser session. This could be used to hijack the victim's AEM session or perform actions in their context. No public exploit code was identified at time of analysis, and the attack depends on the victim interacting with the crafted content.

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 in Adobe Experience Manager 6.5.23 and earlier allows an authenticated low-privileged attacker to execute malicious scripts in a victim's browser when the victim visits an attacker-crafted URL or interacts with a manipulated web page. Exploitation requires a valid low-privilege account (PR:L) and victim interaction (UI:R), significantly limiting realistic risk. No public exploit code has been identified, and EPSS is 0.25% (15th percentile), indicating a low likelihood of exploitation; this is a moderate-severity, low-priority issue rather than an urgent threat.

RemediationAI

Apply the vendor patch specified in Adobe security bulletin APSB25-115; upgrade Adobe Experience Manager to a fixed version as indicated in the advisory. Patch available per vendor advisory. As compensating controls before patching, restrict access to AEM author and publish interfaces to trusted users, enforce a strict Content Security Policy (CSP) to mitigate script execution (trade-off: may break legitimate inline scripts or third-party integrations), and educate users against following untrusted links. Restricting low-privilege account creation and monitoring for anomalous URL-based script injection attempts can reduce exposure, though these do not eliminate the flaw.

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 vulnerability is a DOM-based cross-site scripting (XSS) flaw (CWE-79) in Adobe Experience Manager, a Java-based content management system. DOM-based XSS occurs when client-side JavaScript reads attacker-controllable data from the DOM (e.g., URL parameters, fragments) and writes it into a sink that executes script, without proper sanitization. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N indicates network exploitable, low attack complexity, authenticated low-privilege attacker (PR:L), required user interaction (UI:R), scope change (S:C), and low confidentiality and integrity impact. Affected products per CPE include AEM (all versions, including on-prem configurations), AEM Cloud Service, and AEM 6.5 LTS. The root cause class is improper neutralization of user-controllable input in the browser DOM.

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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 requiring a low-privilege account (PR:L) and victim interaction (UI:R); payload crosses into the browser context (S:C) with limited C/I impact and no availability loss.

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: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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