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Adobe Experience Manager CVE-2025-64606

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 author
  2. Delivery
    Inject script into vulnerable form field
  3. Exploit
    Payload stored in component
  4. Execution
    Victim browses affected page
  5. Impact
    Script executes in victim browser session

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 account with at least low-level privileges in Adobe Experience Manager (PR:L) - specifically the ability to write to the affected form field - meaning this is not reachable by anonymous/unauthenticated users. It further requires victim interaction (UI:R): the injected script only fires when a user navigates to the page rendering the stored field, so a victim must view the malicious content for impact to occur. These two factors (required authoring access plus a browsing victim) are the primary limiters and apply to AEM 6.5.23 and earlier, AEM 6.5 LTS, and AEM as a Cloud Service per the listed CPEs; no special non-default configuration is called out in the description.

Impact

This is a moderate-severity stored XSS (CWE-79) that the collected signals consistently rank as a low-to-moderate real-world priority rather than an urgent threat. The Adobe-issued CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, base 5.4) shows network-reachable but authenticated exploitation (PR:L) that additionally depends on victim interaction (UI:R), which materially caps impact. EPSS reinforces this: 0.25% probability at the 15th percentile indicates very low expected exploitation volume. There is no CISA KEV listing and no public exploit was identified at time of analysis, so this is 'no public exploit identified at time of analysis.' No SSVC decision record was provided in the input, so exploitation-status/automatable/technical-impact cannot be cited from a vendor SSVC framework - this is a gap, not a conflict. The signals do not conflict: a mid-range CVSS, low EPSS, no KEV, and no POC all point the same direction. The main caveat is that stored XSS in an enterprise authoring platform can still be leveraged for targeted session/credential theft or privilege-escalation chains against higher-privileged users (e.g., an author tricking an administrator), so it should be patched in the normal cycle but does not warrant emergency response.

Exploit ScenarioDerived

A low-privileged authenticated AEM author (PR:L) injects malicious JavaScript into a vulnerable form field; the payload is stored and later rendered when a victim - potentially a higher-privileged editor or administrator - browses the page containing that field (UI:R), executing the script in their authenticated browser session. No public exploit code was identified, and successful abuse requires both valid low-level access and a victim viewing the affected 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 14, 2026

Stored cross-site scripting in Adobe Experience Manager 6.5.23 and earlier - including AEM 6.5 LTS and AEM as a Cloud Service - allows an authenticated attacker holding only low-level privileges to inject malicious script into vulnerable form fields, which then executes in the browser of any user who later views the affected page. Exploitation requires two limiting preconditions that keep real-world risk moderate rather than urgent: a valid low-privileged authoring account (PR:L, so not anonymous/unauthenticated reachable) and victim interaction (UI:R) when the victim browses the poisoned field. No public exploit code has been identified at time of analysis, CISA KEV does not list this CVE, and EPSS is a low 0.25% (15th percentile), consistent with a low-priority, moderate-severity issue; Adobe's advisory APSB25-115 covers the fix.

RemediationAI

Patch availability is confirmed per the vendor advisory, so the primary action is to apply Adobe's fix for APSB25-115 (https://helpx.adobe.com/security/products/experience-manager/apsb25-115.html) - the fixed version number is not confirmed in the provided data, so verify the exact target release against Adobe's advisory rather than assuming one - upgrading AEM 6.5.23 and earlier on-premise/LTS installations and relying on Adobe's managed patching for AEM as a Cloud Service, since cloud instances are updated by the vendor. Where immediate upgrade is not possible, reduce exposure by tightening authoring entitlements so that only trusted, vetted users can write to form fields (trade-off: reduced content-team throughput and possible workflow friction), auditing and sanitizing previously stored form-field content so no dormant payloads remain (trade-off: requires content review effort and may alter legitimate stored form data), and deploying a Content Security Policy that blocks inline/untrusted script execution along with WAF filtering of script-bearing form submissions (trade-off: aggressive CSP rules frequently break legitimate AEM components and rich-text features and need testing before enforcement). Because exploitation demands both a low-privileged authenticated account and a victim browsing the poisoned page, monitoring authoring accounts for anomalous form-field edits and watching for unexpected redirects or injected markup on published pages provides a useful compensating detective control until patching completes.

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 classic stored/persistent cross-site scripting issue in the CWE-79 class: attacker-supplied input written into an AEM form field is persisted server-side (in the JCR content repository backing AEM, typically via Sling/Jackrabbit Oak) and later rendered into HTML for other users without adequate output encoding or sanitization, so the payload is served as part of the application's own trusted page rather than reflected back only to the injector. Because the injected script runs in the context of a different user's browser session, the CVSS vector scores Scope as Changed (S:C) with Low confidentiality and integrity impact and no availability impact - the attacker gains script execution in a victim's authenticated AEM session, enabling session/data manipulation rather than server compromise or code execution. The vector AV:N/AC:L/PR:L/UI:R confirms the attack is network-reachable, trivially executed once an account exists, but gated by authenticated low-privilege access plus victim browsing of the affected page. The CPE data identifies the reachable product range as the generic Adobe Experience Manager line (all 6.5.x up to and including 6.5.23), the AEM Cloud Service edition, and the 6.5 LTS track, meaning both on-premise 6.5 deployments and the managed cloud service are in scope.

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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 author access gives PR:L, stored payload needs a victim to browse giving UI:R, and cross-context script execution in the victim's browser yields S:C with 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: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 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 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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