Skip to main content

Experience Manager CVE-2020-9732

CRITICAL
Cross-site Scripting (XSS) (CWE-79)
2020-09-10 psirt@adobe.com
9.0
CVSS 3.1 · NVD
View

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.

Impact

CVSS score of 9.0 (CRITICAL). Attack characteristics: network attack vector, low complexity, low privileges required, user interaction required.

Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 2.8% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

The AEM Forms add-on for versions 6.5.5.0 (and below) and 6.4.8.2 (and below) are affected by a stored XSS vulnerability that allows users with 'Author' privileges to store malicious scripts in. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

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 vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The AEM Forms add-on for versions 6.5.5.0 (and below) and 6.4.8.2 (and below) are affected by a stored XSS vulnerability that allows users with 'Author' privileges to store malicious scripts in fields associated with the Sites component. These scripts may be executed in a victim’s browser when they open the page containing the vulnerable field. Affected products include: Adobe Experience Manager, Adobe Experience Manager Forms.

Know when Experience Manager gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 9.0 CRITICAL
AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

The AEM Forms add-on for versions 6.5.5.0 (and below) and 6.4.8.2 (and below) are affected by a stored XSS vulnerability that allows users with 'Author' privileges to store malicious scripts in fields associated with the Sites component. These scripts may be executed in a victim’s browser when they open the page containing the vulnerable field.

Threat Intelligence Overview

EPSS Score
2.8%
Top 15% exploitable
Data Quality
2 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 CRITICAL
CISA KEV No
Public POC No
EPSS 2.8%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
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

48
Low Medium High Critical
KEV: 0
EPSS: +3
CVSS: +45
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)NVD

cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:experience_manager_forms:6.4.8.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:experience_manager_forms:6.5.5.0:*:*:*:*:*:*:*
CVE-2025-34510 HIGH POC
8.8 Jun 17

Sitecore Experience Manager, Platform, and Commerce versions 9.0 through 10.4 contain a Zip Slip vulnerability that allo

CVE-2025-34511 HIGH POC
8.8 Jun 17

Sitecore PowerShell Extensions through version 7.0 allows authenticated users to upload arbitrary files including ASPX w

CVE-2016-0957 HIGH POC
7.5 Feb 10

Dispatcher before 4.1.5 in Adobe Experience Manager 5.6.1, 6.0.0, and 6.1.0 does not properly implement a URL filter, wh

CVE-2025-53690 CRITICAL POC
9.0 Sep 03

Sitecore Experience Manager/Platform through version 9.0 contains a deserialization vulnerability enabling code injectio

CVE-2025-49533 CRITICAL POC
9.8 Jul 08

Adobe Experience Manager versions 6.5.23.0 and earlier contain a deserialization of untrusted data vulnerability that al

CVE-2025-34509 HIGH POC
7.5 Jun 17

Sitecore Experience Manager (XM) and Experience Platform (XP) versions 10.1 through 10.4.1 contain a hardcoded administr

CVE-2016-0956 HIGH POC
7.5 Feb 10

The Servlets Post component 2.3.6 in Apache Sling, as used in Adobe Experience Manager 5.6.1, 6.0.0, and 6.1.0, allows r

CVE-2025-53693 CRITICAL POC
9.8 Sep 03

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Sitecore Sitecore Ex

CVE-2023-35813 CRITICAL POC
9.8 Jun 17

Multiple Sitecore products allow remote code execution. Rated critical severity (CVSS 9.8), this vulnerability is remote

CVE-2025-53691 HIGH POC
8.8 Sep 03

Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) a

CVE-2017-3108 CRITICAL
9.8 Aug 11

Adobe Experience Manager 6.2 and earlier has a malicious file execution vulnerability. Rated critical severity (CVSS 9.8

CVE-2025-54249 MEDIUM POC
6.5 Sep 09

Adobe Experience Manager versions 6.5.23.0 and earlier are affected by a Server-Side Request Forgery (SSRF) vulnerabilit

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy