Adobe Commerce: Improper input validation allows code execution
Summary
Adobe Commerce, Adobe Commerce B2B and Magento Open Source contain an improper input validation flaw (CWE-20). According to the CVE record, an authenticated attacker with high privileges can execute arbitrary code in the context of the current user, and no user interaction is needed. Adobe's bulletin APSB26-153 describes the impact of this CVE as arbitrary file system write, so the exact impact is not confirmed yet.
Affected
- Adobe Commerce 2.4.4 to 2.4.9 (2026-sep and earlier)
- Adobe Commerce B2B 1.3.3 to 1.5.3 (2026-sep and earlier)
- Magento Open Source 2.4.7 to 2.4.9 (2026-sep and earlier)
Fixed in
- Adobe Commerce: 2.4.4-2026-oct, 2.4.5-2026-oct, 2.4.6-2026-oct, 2.4.7-2026-oct, 2.4.8-2026-oct, 2.4.9-2026-oct
- Adobe Commerce B2B: 1.3.3-2026-oct, 1.3.4-2026-oct, 1.4.2-2026-oct, 1.5.2-2026-oct, 1.5.3-2026-oct
- Magento Open Source: 2.4.7-2026-oct, 2.4.8-2026-oct, 2.4.9-2026-oct
- Alpha builds (2.4.10-alpha1, 1.5.4-alpha1) are not production fixes.
Workaround
Unknown.
Exploitation
- Adobe is not aware of any exploits in the wild for the issues in APSB26-153.
- Adobe rates this CVE's exploitation as none and not automatable (CISA SSVC).
- EPSS score about 0.0086.
Our recommendation
- Identify all Adobe Commerce, B2B and Magento Open Source installations and their exact versions.
- Apply the October 2026 release (2026-oct) according to Adobe's bulletin APSB26-153.
- Keep the September hotfix for CVE-2026-75650 installed, as required by Adobe's bulletin note.
- Prioritise CVE-2026-103849 (CVSS 10.0, no authentication required), which is in the same bulletin.
- Restrict admin access, enforce MFA and review admin accounts.
- Monitor for vendor updates, since the NVD analysis was still pending.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Adobe Security Bulletin APSB26-153 www.adobe.com
- Meetanshi: APSB26-153 security patches for Magento meetanshi.com
- CyberExperts: Adobe Commerce update cyberexperts.com
- Vulners/Mend: CVE-2026-95631 vulners.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 04:16.
Original description (NVD)
Adobe Commerce is affected by an Improper Input Validation 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.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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