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CVE-2026-73157 is a stored cross-site scripting vulnerability in cti-transmute affecting versions 1.4 and earlier when rendering data fetched from a remote MISP instance in the event-browser interface. The application interpolates remote-derived fields into HTML, allowing values controlled by the remote MISP server—such as event metadata, organization names, tags, labels, and status text—to be inserted into the page as active markup rather than inert text. This unsafe rendering path allows a malicious or compromised remote MISP instance to persistently inject HTML or script-capable content into the interface viewed by users. The issue was remediated by eliminating unsafe innerHTML usage for these elements, rebuilding rows and badges with DOM nodes populated via textContent, and constraining remote-controlled color values to six-digit hexadecimal format to prevent malicious CSS injection.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.