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Adobe Experience Manager CVE-2025-64605

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
    Authenticate as low-privileged AEM user
  2. Delivery
    Inject malicious script into vulnerable form field
  3. Exploit
    Payload stored by application
  4. Execution
    Victim browses to affected page
  5. Persist
    Script executes in victim browser context
  6. Impact
    Steal 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 the attacker to hold a low-privileged authenticated account in Adobe Experience Manager with the ability to submit or edit content in a vulnerable form field (PR:L), and it further requires a victim to subsequently browse to the page rendering that stored field (UI:R) for the injected JavaScript to execute. These two factors - needing valid (even if low) credentials and requiring victim interaction - are the primary limiting conditions and significantly narrow realistic exploitation to environments where semi-trusted users can author form/field content. Affected deployments include AEM 6.5.23 and earlier, AEM 6.5 LTS, and AEM as a Cloud Service per the provided CPE strings.

Impact

This is a genuine but moderate-priority issue, not a top-tier emergency. 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 stored XSS that nonetheless requires low-privileged authentication (PR:L) AND victim interaction (UI:R), both of which meaningfully gate exploitation. The EPSS score of 0.25% (15th percentile) is low and aligns with the absence of any CISA KEV listing and no identified public exploit code, so there is no evidence of active or widespread exploitation. The scope change (S:C) is the main aggravating factor - injected script executes in the victim's browser context rather than only the component storing it - but confidentiality and integrity impact are rated Low and availability is None, consistent with typical XSS session/content manipulation rather than full account or server compromise. No SSVC decision data was provided in the input, so automatability and technical-impact framing cannot be cited. Signals are internally consistent (low EPSS, no KEV, no POC, mid-range CVSS requiring auth + interaction); none conflict. Net: patch in a normal cycle, prioritize if the AEM author/form environment is exposed to semi-trusted content contributors.

Exploit ScenarioDerived

A low-privileged authenticated user (e.g., a content author or form editor) injects malicious JavaScript into a vulnerable AEM form field, which is stored by the application. When a victim - such as another author or an administrator - later browses to the page rendering that field, the script executes in their browser, enabling session token theft, actions-as-the-victim, or UI redressing. No public exploit code was identified at time of analysis, and exploitation depends on the victim actually visiting the affected page.

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

Stored cross-site scripting in Adobe Experience Manager 6.5.23 and earlier allows a low-privileged authenticated attacker to inject malicious JavaScript into vulnerable form fields, which then executes in a victim’s browser when the victim views the affected page. Affected deployments include AEM 6.5.23 and earlier, AEM 6.5 LTS, and AEM as a Cloud Service. Exploitation requires valid low-privileged credentials plus victim interaction (CVSS 3.1: AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N), and no public exploit code was identified at time of analysis; EPSS is 0.25% (15th percentile), indicating low observed exploitation likelihood.

RemediationAI

Apply the fix or upgrade path documented in Adobe advisory APSB25-115; the supplied data does not specify an exact fixed version, so administrators should consult the advisory for the appropriate patched 6.5.x, 6.5 LTS, or AEM as a Cloud Service release and deploy it promptly. If immediate patching is not possible, restrict the ability to submit or edit affected form fields to trusted authors only, since the vulnerability requires a low-privileged authenticated account to store the payload; this reduces exposure but may impede legitimate content-authoring workflows. Additional compensating controls include enforcing a strict Content Security Policy to limit script execution and ensuring server-side validation/output encoding for form field content, though these reduce rather than eliminate risk.

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 stored (persistent) cross-site scripting issue, rooted in CWE-79: improper neutralization of input during web page generation. Adobe Experience Manager is an enterprise content management system, and the affected CPE entries cover AEM 6.5.x prior to or at 6.5.23, AEM 6.5 LTS, and AEM as a Cloud Service. An attacker who can author or edit form field content stores script in the application; when another user browses to the page rendering that field, the script executes in the victim’s browser context. The CVSS vector’s S:C (scope changed) reflects that the injected script may affect resources beyond the vulnerable component’s security authority, while C:L/I:L indicate limited confidentiality and integrity impact; availability impact is none.

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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

Stored XSS reachable over the network but requiring a low-privileged account (PR:L) and victim browsing (UI:R); scope changes to the victim browser (S:C) with limited C/I impact and no availability effect.

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: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 stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.

Threat Intelligence Overview

EPSS Score
0.2%
Top 85% exploitable
Prevalence
High
Widely deployed enterprise CMS/DAM platform 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
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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