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Adobe Commerce CVE-2026-95630

| EUVDEUVD-2026-99215 MEDIUM
Improper Input Validation (CWE-20)
2026-10-13 adobe GHSA-v526-7992-7f57
4.3
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as low-privilege user
  2. Exploit
    Send crafted request with malformed input
  3. Execution
    Bypass input validation security control
  4. Impact
    Read unauthorized data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Exploitation Conditions

Requires an authenticated low-privilege account on the Adobe Commerce / Magento Open Source / Adobe Commerce B2B instance (CVSS PR:L), consistent with the description's 'low-privileged attacker'; no user interaction is needed (UI:N) and the attack is network-reachable (AV:N). The description does not name a specific feature, protocol, or non-default configuration setting as a prerequisite, so the primary limiting factor is the need for prior authenticated access - fully anonymous, unauthenticated exploitation is not supported by the CVSS vector. Impact is limited to unauthorized read access (C:L) with no integrity or availability effect.

Impact

This is a moderate-severity, lower-priority issue (CVSS 4.3) rather than an urgent threat. The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N) indicates network-reachable, low-complexity exploitation but requires low-level privileges (PR:L) - i.e., an authenticated account on the Commerce instance - and yields only limited confidentiality impact (C:L) with no integrity or availability impact. No EPSS score, KEV listing, or SSVC decision data was provided in the input, and no public exploit is identified, so there is no signal of active or probable exploitation. The practical risk is unauthorized read access to information the attacker should not see, scoped to an attacker who already holds some authenticated access. This is a real but low-priority defect: patch in the normal cycle, prioritizing instances that grant low-trust user accounts (e.g., B2B company users, customer/registered accounts). Note the 'Authentication Bypass' tag appears to overstate impact - the CVSS PR:L and the description ('low-privileged attacker') indicate a security-feature bypass by an already-authenticated low-privilege user, not a true pre-authentication bypass; treat the tag with caution.

Exploit ScenarioDerived

A low-privileged authenticated user (such as a registered customer or B2B company account) sends crafted requests that exploit improper input validation to defeat a security control and read data they should not be authorized to access. Exploitation requires no user interaction and no elevated privileges beyond the attacker's existing low-level account. No public proof-of-concept is identified at this time.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.5% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 13, 2026

Adobe Commerce, along with Magento Open Source and Adobe Commerce B2B, contains an improper input validation vulnerability that allows an authenticated low-privilege attacker to bypass security features and gain unauthorized read access. The flaw is network-reachable, requires no user interaction, and is limited to confidentiality impact (read-only) with a CVSS score of 4.3, making it a moderate-severity, lower-priority issue. No public exploit code or confirmed active exploitation has been identified in the available intelligence.

RemediationAI

Apply the vendor-released update as described in Adobe's security advisory APSB26-153 (https://www.adobe.com/trust/security/products/commerce/apsb26-153.html); the input data does not specify an exact patched version, so obtain the fixed release from the advisory. Because exploitation requires a valid low-privilege authenticated account (PR:L), the most effective compensating control is to strictly limit and monitor accounts with low privileges: enforce least privilege, rotate credentials, and review logs for anomalous read operations from such accounts. If immediate patching is not possible, consider restricting network access to sensitive commerce endpoints to trusted IP ranges or requiring additional authentication for those endpoints, though this may reduce accessibility for legitimate remote users. No public exploit code or active exploitation has been identified, so the immediate risk is moderate and remediation can follow normal change management.

Affected VersionsENISA

Adobe Commerce B2B 0 ≤1.5.3-2026-sep, 1.5.2-2026-sep, 1.4.2-2026-sep, 1.3.4-2026-sep, 1.3.3-2026-sep
Adobe Commerce 0 ≤2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep, 2.4.6-2026-sep, 2.4.5-2026-sep, 2.4.4-2026-sep
Magento Open Source 0 ≤2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep

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Technical ContextAI · show details

The vulnerability is classified as CWE-20 (Improper Input Validation) and resides in Adobe Commerce, an e-commerce platform written in PHP and commonly deployed with Magento Open Source and the B2B module. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N indicates the attack is carried out over the network with low complexity, but requires the attacker to already hold a low-privileged authenticated account. The root cause is a failure to properly validate input before it is used in a security-relevant decision, which allows an attacker to bypass an access control or security feature and read data they would not normally be permitted to access. The CPE entries-adobe:adobe_commerce, adobe:adobe_commerce_b2b, and adobe:magento_open_source-confirm the affected codebase spans the core Commerce platform, its B2B extension, and the open-source Magento project. No specific non-default configuration or user interaction is required beyond the authenticated session.

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Severity by source

Vendor (adobe) PRIMARY MEDIUM
NVD 4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 4.3 MEDIUM

Network-reachable (AV:N) and low-complexity (AC:L) but requires an authenticated low-privilege account (PR:L); only limited unauthorized read access, so C:L with I:N/A:N.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (adobe).

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

DescriptionNVD

Adobe Commerce is affected by an Improper Input Validation vulnerability that could result in a Security feature bypass. A low-privileged attacker could leverage this vulnerability to bypass security measures and gain unauthorized read access. Exploitation of this issue does not require user interaction.

Threat Intelligence Overview

EPSS Score
0.5%
Top 61% exploitable
Prevalence
High
Adobe Commerce/Magento is widely deployed enterprise e-commerce software
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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.5%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
High
Technical Impact
Partial

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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Stored cross-site scripting (XSS) in Adobe Commerce, Adobe Commerce B2B, and Magento Open Source allows an attacker who

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9.1 Jul 14

Arbitrary code execution in Adobe Commerce, Adobe Commerce B2B, Magento Open Source, and the Adobe Commerce Webhooks Plu

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9.1 Oct 13

Arbitrary code execution is achievable in Adobe Commerce, Adobe Commerce B2B, and Magento Open Source by an attacker who

CVE-2026-47994 HIGH
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Stored cross-site scripting in Adobe Commerce, Adobe Commerce B2B, and Magento Open Source lets a low-privileged authent

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