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CVE-2021-23648 is a cross-site scripting vulnerability in versions of the @braintree/sanitize-url package before 6.0.0. The sanitizeUrl function performs improper URL sanitization, allowing malicious URL input to bypass the intended sanitization controls in applications that rely on the package.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A cross-site scripting vulnerability caused by improper sanitization in the sanitize-url sanitizeUrl function.
Unknown
Cross-site scripting vulnerability in sanitize-url caused by improper URL sanitization.
Cross-site scripting flaw in sanitize-url caused by improper URL sanitization in the sanitizeUrl function.
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.