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Adobe Experience Manager CVE-2025-64614

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 script into vulnerable form field
  3. Exploit
    Store malicious payload persistently
  4. Execution
    Victim browses affected page
  5. Impact
    Script executes 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 attacker to hold a low-privileged authenticated account in Adobe Experience Manager (PR:L) capable of editing a vulnerable form field, and a separate victim must subsequently browse to the page that renders the stored field (UI:R) for the injected JavaScript to execute. Affected deployments are AEM versions 6.5.23 and earlier (including the 6.5 LTS line and referenced AEM Cloud Service CPE). Limiting factors: no unauthenticated path exists, the payload only triggers on victim page load, and impact is confined to script execution in the victim's browser (C:L/I:L, no availability impact) rather than direct server-side compromise.

Impact

This is a moderate, not a priority, issue. 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) describes a stored XSS that is network-reachable with low complexity, but exploitation is gated by two meaningful factors: the attacker must already hold low-level privileges (PR:L) to inject into the vulnerable form field, and a victim must be induced to browse the affected page (UI:R). The scope change (S:C) and dual low confidentiality/integrity impact reflect script execution in a victim's browser context rather than direct server compromise. Real-world urgency signals are weak and consistent with each other: EPSS is only 0.25% (15th percentile), there is no CISA KEV listing, and no public exploit code was identified in the provided data - all pointing to low likelihood of widespread opportunistic exploitation. No signals conflict. The dominant limiting factor is the required low-privileged authenticated access combined with victim interaction, which keeps this well below the profile of an unauthenticated RCE despite the network attack vector.

Exploit ScenarioDerived

A low-privileged authenticated user (e.g., a content author) injects malicious JavaScript into a vulnerable AEM form field, which is stored persistently. When another user - such as an administrator or site visitor - later browses to the page rendering that field, the script executes in their browser, potentially stealing session tokens or performing actions in their context. No public exploit code was identified at time of analysis, and exploitation requires both prior low-level access and victim interaction.

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 author to inject malicious JavaScript into vulnerable form fields, which then executes in the browser of any user who later browses to the page rendering that field. Exploitation requires an attacker to already hold a valid AEM account with authoring access plus a separate victim to load the poisoned page, so the attack is not unauthenticated and does not compromise the server itself - impact is limited to script execution in the victim's browser session (low confidentiality and integrity, no availability impact). No public exploit code has been identified at time of analysis, no active exploitation is confirmed, and the EPSS score is 0.25% (15th percentile), consistent with a moderate, non-priority issue that nonetheless matters in author-heavy or publicly exposed publish-tier deployments.

RemediationAI

Apply the fixed release documented in Adobe security advisory APSB25-115 (https://helpx.adobe.com/security/products/experience-manager/apsb25-115.html), which is the vendor's remediation for AEM 6.5.23 and earlier; upgrade the affected 6.5 LTS instances to the patched Service Pack level listed there or later, and note that AEM as a Cloud Service customers receive the correction through Adobe's managed release channel rather than a manual upgrade - patch available per vendor advisory, with the exact fixed build number published on the bulletin. Because the vector requires only a low-privileged author account, urgent interim controls should focus on reducing who can plant content: audit and trim AEM user/group permissions so that only trusted authoring accounts can edit form components, and disable or restrict the specific form/custom component types that accept raw rich-text or HTML field input until the patch is deployed, accepting the trade-off that legitimate form-building workflows will be blocked for those users. Additional compensating measures include a strict Content Security Policy on publish-tier pages to limit inline script execution (with the caveat that CSP tuning can break existing AEM client-side components), server-side allow-list sanitization of stored form field values on ingest, and monitoring repository content for script-bearing field submissions. Restricting or WAF-filtering external access to /content and form-submission endpoints can reduce exposure but does not remove the stored payloads already in the JCR, which should be identified and cleaned as part of remediation.

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 CWE-79 improper neutralization of input during web page generation, specifically the stored (persistent) variant. In AEM, form components built on the Granite/Coral UI and the AEM Forms / adaptive forms stack accept author-supplied field content that is persisted in the JCR content repository and later rendered back into HTML pages served to other users. When that stored value is not correctly output-encoded for the surrounding HTML context, injected script tags or event-handler attributes survive storage and are served to every visitor of the affected page, executing in their authenticated AEM session context. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N reflects network reachability, low attack complexity, the need for a low-privileged account (PR:L) rather than anonymous access, mandatory victim interaction (UI:R), and a changed scope (S:C) because the script crosses from the attacker's content context into the victim's browser origin. CPE data identifies the affected product across three deployment shapes: adobe:experience_manager (all-version wildcard), the aem_cloud_service edition, and the 6.5 lts release line - meaning on-premise 6.5 LTS installations and AEM as a Cloud Service are both in scope, with 6.5.23 as the last affected on-premise release cited in the advisory.

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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 requires a low-privileged author account (PR:L) and victim browsing (UI:R); scope changes to the victim's browser (S:C) with limited confidentiality/integrity impact 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: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/digital experience 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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