CVE-2020-9732 | Stored XSS in AEM Sites Components

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.

Published: 2020-09-10 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-9732 is rated High Risk (67.7/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.81%). EPSS rose +2.11% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-9732

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.70% 2.81% +2.11%
2 2025-11-28 0.95% 0.70% -0.25%
3 2025-11-21 — 0.95% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-9732

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.3 6.0 [email protected]
9.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.3 6.0 [email protected]
6.0 2.0 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 6.4 [email protected]

Weakness enumeration for CVE-2020-9732

Affected software / configurations for CVE-2020-9732

Vendor Product Version Raw CPE
adobe experience_manager <= 6.2.1.20 cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
adobe experience_manager >= 6.3.0.0, <= 6.3.3.8 cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
adobe experience_manager >= 6.4.0.0, <= 6.4.8.1 cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
adobe experience_manager >= 6.5.0.0, <= 6.5.5.0 cpe:2.3:a:adobe:experience_manager:*:*:*:*:*:*:*:*
adobe experience_manager_forms 6.4.8.1 cpe:2.3:a:adobe:experience_manager_forms:6.4.8.1:*:*:*:*:*:*:*
adobe experience_manager_forms 6.5.5.0 cpe:2.3:a:adobe:experience_manager_forms:6.5.5.0:*:*:*:*:*:*:*

References for CVE-2020-9732

cvelogic Threat Intelligence