Security readout for executives and security teams
Plain-English summary
CVE-2020-9732 is a stored cross-site scripting issue in Adobe Experience Manager Forms add-on. A user with Author privileges could save malicious script content in Sites component fields, which may run when another user opens the affected page. The business risk is compromise of browser sessions and trusted AEM content workflows.
Executive priority
Treat this as high-priority for any exposed or actively used AEM authoring environment. The CVSS score is critical, but the need for Author privileges and victim interaction makes access governance and patch status central to urgency.
Technical view
The vulnerability is CWE-79 stored XSS affecting AEM Forms add-on versions 6.5.5.0 and below, and 6.4.8.2 and below. It is network-reachable, low-complexity, requires Author privileges and victim interaction, and has CVSS 3.1 score 9.0 with changed scope and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in Adobe Experience Manager deployments using the Forms add-on at or below the listed versions, especially where multiple users have Author privileges and Sites component content is reviewed or published through shared workflows.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires an authenticated Author-level user to store malicious content and a victim to open a page containing the vulnerable field.
Researcher notes
Evidence is limited to the CVE record and Adobe advisory reference. Do not assume affected CPEs beyond Adobe Experience Manager Forms add-on. Focus validation on version inventory, Author-role exposure, stored content review, and whether Adobe’s APSB20-56 remediation has been applied.
Mitigation direction
- Identify AEM instances using the Forms add-on and affected version ranges.
- Review Adobe APSB20-56 for the vendor-supported update or remediation path.
- Reduce Author privileges to trusted users until remediation is complete.
- Review Sites component fields for unexpected script-like content.
- Prioritize remediation on internet-facing or business-critical AEM environments.
Validation and detection
- Confirm installed AEM Forms add-on versions against 6.5.5.0 and 6.4.8.2 thresholds.
- Verify remediation status against Adobe APSB20-56, not assumptions.
- Review recent Author changes to Sites component fields.
- Check whether affected pages are accessible to privileged users or external audiences.
- Document compensating controls if immediate vendor remediation is not possible.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-9732 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H2.36Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/experience-manager/apsb20-56.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.