Security Digest · Vulnerability record
CVE-2026-103849: Adobe Commerce | Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)
Adobe Commerce is affected by an Improper Neutralization of Special Elements Used in a Template Engine vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session.
CVSS 10.0 Critical EPSS 0.8% · p57 Act now
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.8%, percentile 57: FIRST’s model estimates a 0.8% chance of exploitation activity in the next 30 days, higher than 57% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Editorial verdict: Act now. Magento StyleSmuggler CVE-2026-75650: Exploited Pre-Auth RCE — Any self-run Magento or Adobe Commerce store without the September hotfix should be presumed compromised: patch, then scan, then rotate the encryption key and every credential it protects, and add the October fix for the follow-on BlockStrap bug.
What it is
Adobe Commerce is affected by an Improper Neutralization of Special Elements Used in a Template Engine vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue does not require user interaction. Scope is changed.
Weakness type: CWE-1336.
Product: Adobe Adobe Commerce · Assigned by: adobe · Published: 2026-10-13
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Adobe | Adobe Commerce | <= 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 |
| Adobe | Adobe Commerce B2B | <= 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 | Magento Open Source | <= 2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| adobe | 3.1 | 10 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.84% probability of exploitation activity in the next 30 days; percentile 57.
Timeline
- — erroneo.us brief: Magento StyleSmuggler CVE-2026-75650: Exploited Pre-Auth RCE
- — CVE record published by adobe
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- adobe.com adobe.com
Vulnerability records
- CVE.org record CVE-2026-103849 cve.org
- NVD entry CVE-2026-103849 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com