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CVE-2026-48307 is a reflected cross-site scripting vulnerability in Adobe ColdFusion affecting ColdFusion 2025 Update 9 and earlier and ColdFusion 2023 Update 20 and earlier. The flaw allows attacker-controlled input to be reflected into a web page without proper neutralization, enabling injection and execution of malicious script in a victim’s browser. Successful exploitation occurs in the security context of the current user and has been described as potentially resulting in arbitrary code execution in that user context. The vulnerability requires user interaction, specifically that a victim open a crafted malicious link. The issue is classified as CWE-79 and has a CVSS 3.1 base score of 8.8 with changed scope.
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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.
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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.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Adobe ColdFusion cross-site scripting vulnerability used as an example of how Scope Changed can drive a high CVSS score despite requiring user interaction and adjacent network access.
A notable Adobe ColdFusion vulnerability with CVSS 8.8; the specific flaw type is not described in the content.
A reflected XSS vulnerability in Adobe ColdFusion addressed in this security update.
An Adobe ColdFusion vulnerability described as an XSS defect that could lead to arbitrary code execution.
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.