LiveActive security incident?Get immediate response
CVE Record

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.

CriticalCVSS 9.1Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

This critical Adobe Commerce-family vulnerability could let a highly privileged attacker run code with the current user’s permissions. It is remotely reachable, needs no user interaction, and may cross a security boundary. The supplied evidence does not establish active exploitation.

Executive priority

Treat as an urgent remediation item for affected internet-facing or business-critical commerce systems. Prioritize confirming exact versions and protecting privileged accounts. High privilege requirements reduce opportunistic exposure, but successful exploitation could cause broad compromise and major operational impact.

Technical view

CVE-2026-48358 is an improper output encoding or escaping flaw (CWE-116). Its CVSS 3.1 score is 9.1: network-accessible, low complexity, high privileges required, no user interaction, changed scope, and high confidentiality, integrity, and availability impact.

Likely exposure

Potential exposure includes the listed Adobe Commerce, Commerce B2B, Magento Open Source, and Commerce Events releases. The supplied version notation is ambiguous, so administrators should compare exact installed builds against APSB26-73. Risk is greatest where high-privilege accounts or credentials are compromised.

Exploitation context

Exploitation requires high privileges but no victim interaction. The network attack vector and changed scope increase potential impact. The bundle reports that this CVE is not in KEV and provides no other evidence of exploitation in the wild.

Researcher notes

The supplied record identifies CWE-116 and arbitrary code execution in the current-user context, but does not describe the vulnerable component, encoding boundary, attack input, patch details, or indicators of compromise. Affected-version strings are insufficiently clear for independent range interpretation; use the vendor advisory as authoritative guidance.

Mitigation direction

  • Review Adobe advisory APSB26-73 and apply its supported remediation for each installed product and exact build.
  • Restrict privileged access until remediation is confirmed.
  • Rotate or revoke credentials suspected of compromise.
  • Monitor Adobe guidance for clarified version mappings or additional mitigations.

Validation and detection

  • Inventory exact Adobe Commerce-family products, editions, modules, and build identifiers.
  • Compare every installed build with the affected-version information in APSB26-73.
  • Confirm remediation completion through change records and post-update version checks.
  • Review privileged-account and application activity for unexpected code execution or configuration changes.
Prepared
Confidence
medium
Sources
3

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.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-48358 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Official CVE source material

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.

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.

ScoreVersionSeverityVectorExploitImpactSource
9.1CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H2.36adobe

Vulnerability scoring details

Base CVSS 3.1 score

9.1Critical
CVSS 3.1 vector shape for CVE-2026-48358Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AdobeAdobe Commerce0, 2.4.9-2026-jul, 2.4.8-2026-jul, 2.4.7-2026-jul, 2.4.6-2026-jul, 2.4.5-2026-jul, 2.4.4-2026-julunaffected
AdobeAdobe Commerce B2B0, 1.5.3-2026-jul, 1.5.2-2026-jul, 1.4.2-2026-jul, 1.3.4-2026-jul, 1.3.3-2026-julunaffected
AdobeMagento Open Source0, 2.4.9-2026-jul, 2.4.8-2026-jul, 2.4.7-2026-jul, 2.4.6-2026-julunaffected
AdobeAdobe Commerce Events0, 1.21.0unaffected
Weakness

CWE details

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.