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StyleSmuggler (CVE-2026-75650): Frequently asked questions about Adobe Commerce and Magento zero-day

Critical unauthenticated RCE zero-day CVE-2026-75650 (StyleSmuggler) in Adobe Commerce and Magento is actively exploited; Adobe shipped hotfix VULN-39341 on September 7.

CVE-2026-75650 is a CVSS 10.0 unauthenticated remote code execution flaw in Adobe Commerce 2.4.4-2.4.9, Adobe Commerce B2B 1.3.3-1.5.3, and Magento Open Source 2.4.6-2.4.9, exploited via malicious style properties that inject PHP code executed through a transactional email template. Active exploitation began September 4, 2026, three days before Adobe released Hotfix VULN-39341 (APSB26-146) on September 7, with multiple victim stores confirmed by Sansec and Disrex across at least two distinct campaigns. Attackers deploy a persistent implant at ~/.local/share/.gvfsd/gvfsd-user masquerading as kworker, fc-cache, or chronyd, sustained by a cron job, while a second operator dropped a PHP web shell in product image caches. Tenable classified it as a Vulnerability of Interest; it is not yet in CISA KEV as of September 8, and Adobe also recommends rotating encryption keys and all protected credentials.

Tenable Blogupdated · 7d agofirst · 7d agoExploit / PoC in the wild 2 sourcesCVE-2026-75650CVE-2025-54236CVE-2024-34102+1 CVEs

Related CVEs

  • CVE-2026-7565010.02%
    Unauthenticated Template Injection RCE in Adobe Commerce and Magento (CVE-2026-75650)
    Adobe Commerce and Magento (including Adobe Commerce B2B) contain an improper neutralization of special elements used in a template engine (CWE-1336), a template-injection flaw that permits arbitrary code execution in the context of the current user. The flaw is reachable over the network by unauthenticated attackers, requires no user interaction, and its changed scope (CVSS 3.1 S:C) means injected code executes beyond the vulnerable component, producing a maximum-severity (CVSS 10.0) remote code execution condition. A successful attacker gains arbitrary code execution on the storefront server; in the observed campaign, intruders installed a Rust backdoor and a PHP web shell (dubbed 'StyleSmuggler') on compromised servers. Any organization running an Adobe Commerce, Adobe Commerce B2B, or Magento storefront is in scope, with internet-facing e-commerce deployments most exposed. Exploitation is confirmed in the wild: the bug was abused as a zero-day before patching and was added to CISA's Known Exploited Vulnerabilities catalog on 2026-09-08.
    · Adobe Commerce · Adobe Commerce B2B KEV PoC mass
  • CVE-2022-240869.899%
    Unauthenticated RCE via checkout input-validation flaw in Adobe Commerce/Magento
    Adobe Commerce and Magento Open Source versions 2.4.3-p1 and earlier and 2.3.7-p2 and earlier contain an improper input validation flaw (CWE-20) in the checkout process. A remote attacker can trigger it with no privileges and no user interaction by submitting crafted input to a store's checkout flow, and successful exploitation results in arbitrary code execution on the server hosting the storefront. Any Adobe Commerce or Magento Open Source storefront running the affected versions is exposed, and because these are internet-facing e-commerce sites the practical exposure is broad. Exploitation is confirmed in the wild: the flaw is in CISA's Known Exploited Vulnerabilities catalog (added 2022-02-15), its EPSS exploitation probability is 99.2% (100th percentile), and news reports describe ongoing attacks against Magento 2 stores, including recurring 'Xurum' attack campaigns and template-based attacks.
    · Adobe Commerce 2.4.3-p1 and earlier; 2.3.7-p2 and earlier · Adobe Magento Open Source 2.4.3-p1 and earlier; 2.3.7-p2 and earlier KEVmass
  • CVE-2024-341029.8100%
    XXE vulnerability enabling RCE in Adobe Commerce and Magento Open Source
    CVE-2024-34102 is an improper restriction of XML external entity reference (XXE) vulnerability (CWE-611) in Adobe Commerce and Magento Open Source, where the platform does not properly restrict external entities when processing XML, so an attacker who can submit crafted XML containing external entity references can have it parsed with attacker-controlled resources. XXE flaws classically enable local file disclosure and server-side request forgery, and in this case Adobe states the flaw allows remote code execution on the affected server. Any organization running a vulnerable Adobe Commerce or Magento Open Source storefront is affected, and because these are internet-facing e-commerce platforms that routinely process XML input, exposure is likely to be broad. The vulnerability was added to CISA's Known Exploited Vulnerabilities catalog on 2024-07-17, confirming exploitation in the wild, and its EPSS score of ~100% (100th percentile) indicates near-certain near-term exploitation activity; no public proof-of-concept is known and CVSS has not yet been scored. CISA lists ransomware use as unknown, so a ransomware connection should not be assumed.
    · Adobe Commerce · Adobe Magento Open Source KEV PoC mass
  • CVE-2025-542369.195%
    Unauthenticated Session Takeover in Adobe Commerce and Magento (SessionReaper)
    Adobe Commerce and Magento Open Source contain an improper input validation flaw (CWE-20), widely tracked as 'SessionReaper', that lets a remote, unauthenticated attacker take over user sessions. The flaw is exploitable over the network with no privileges and no user interaction (CVSS 3.1 9.1, critical). A successful attacker hijacks legitimate customer or admin sessions, yielding high confidentiality and integrity impact; a public writeup additionally describes unauthenticated exploitation potentially reaching code execution. Anyone running Adobe Commerce (including Commerce B2B) or Magento Open Source on the affected 2.4.x releases is exposed. Exploitation is confirmed in the wild: CISA added the flaw to its KEV catalog on 2025-10-24, reporting headlines cite over 250 observed attacks, EPSS is 94.5%, and roughly 3 in 5 stores were reported as still unpatched.
    · Adobe Commerce 2.4.9-alpha2, 2.4.8-p2, 2.4.7-p7, 2.4.6-p12, 2.4.5-p14, 2.4.4-p15 and earlier (all listed 2.4.x lines and older releases) · Adobe Commerce B2B Listed via CPE as affected alongside Adobe Commerce; no separate version range given in the source data — treat B2B deployments on the affected Commerce 2.4.x l KEV PoC mass

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malware StyleSmuggler implant 1product Adobe Commerce 1product Adobe Commerce B2B 1product Magento Open Source 1vendor Adobe 1vendor CISA 1vendor Sansec 1vendor Tenable 1
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