CVE-2026-48358: Adobe Commerce | Improper Encoding or Escaping of Output (CWE-116)
Adobe Commerce is affected by an Improper Encoding or Escaping of Output vulnerability that could result in arbitrary code execution in the context of the current user. An attacker with high privileges could exploit this vulnerability to execute arbitrary code. Exploitation of this issue does not require user interaction. Scope is changed.
Security readout for executives and security teams
Plain-English summary
CVE-2026-48358 is a critical Adobe Commerce issue that can let a highly privileged attacker run code in the current user’s context. It affects Adobe Commerce, Commerce B2B, Magento Open Source, and the Adobe Commerce Webhooks Plugin. Public sources provided do not show confirmed active exploitation.
Executive priority
Treat this as urgent for commerce platforms because successful exploitation could affect confidentiality, integrity, and availability. The privilege requirement lowers likelihood, but the business impact is still severe.
Technical view
The flaw is CWE-116 improper output encoding or escaping. Adobe rates it CVSS 9.1: network reachable, low complexity, high privileges required, no user interaction, changed scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Organizations running the listed Adobe Commerce, Adobe Commerce B2B, Magento Open Source, or Webhooks Plugin versions may be exposed, especially where high-privilege accounts exist or admin access is broadly reachable.
Exploitation context
The source bundle says exploitation requires high privileges but no user interaction. KEV is false, and no cited source in the bundle confirms exploitation in the wild or provides public exploit details.
Researcher notes
Evidence is limited to the CVE record and Adobe advisory reference in the bundle. No exploit indicators, root-cause details, or exact fixed versions are included here; use Adobe APSB26-73 as the controlling remediation source.
Mitigation direction
Review Adobe APSB26-73 for vendor-approved remediation and fixed release guidance.
Inventory all Adobe Commerce, B2B, Magento Open Source, and Webhooks Plugin deployments.
Prioritize remediation for internet-facing commerce systems and production admin environments.
Restrict high-privilege account access until vendor remediation is applied.
Monitor privileged account activity for unusual changes or code execution indicators.
Validation and detection
Compare installed product and plugin versions against the affected versions in the source bundle.
Confirm whether each deployment follows Adobe APSB26-73 remediation guidance.
Review privileged user lists and remove unnecessary high-privilege access.
Check admin and application logs for unexpected high-privilege actions.
Verify remediation status after applying any vendor-provided update.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · medium confidence lookup
CWE-116: 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.
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
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.
1CVSS vectors
3Timeline events
1ADP providers
2Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total
CVSS vector scores
1 official score
We 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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-116 · source CWE mapping
Improper Encoding or Escaping of Output
Improper Encoding or Escaping of Output represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.