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CVE-2026-48358 is a critical improper encoding or escaping of output vulnerability in Adobe Commerce-related products, specifically noted as applying to webhooks functionality. The flaw is classified as CWE-116 and affects Adobe Commerce, Adobe Commerce B2B, Magento Open Source, and the Adobe Commerce Webhooks Plugin in vulnerable versions prior to the July 2026 security update releases and plugin version 1.21.0. Successful exploitation can result in arbitrary code execution in the context of the current user. The issue does not require user interaction, and the scope is changed, indicating impact beyond the initially vulnerable component.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical Adobe Commerce vulnerability that could lead to privilege escalation and arbitrary code execution.
A specific vulnerability tracked as CVE-2026-48358 affecting Adobe Commerce, Adobe Commerce B2B, Magento Open Source, and the Adobe Commerce Webhooks Plugin. The content indicates affected and unaffected version ranges, implying vendor fixes are available in July 2026 releases and Webhooks Plugin 1.21.0.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.