MEDIUMnpm →
showdown metadata title handling allows cross-site scripting
showdown metadata title handling allows cross-site scripting
Affected packages
- showdown
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-59711
- https://github.com/showdownjs/showdown/issues/1047
- https://github.com/showdownjs/showdown/commit/184a3e4e97f90e075c4512f2c4c06dcf655e91b7
- https://github.com/showdownjs/showdown
- https://www.vulncheck.com/advisories/showdown-cross-site-scripting-via-unescaped-metadata-title-in-completehtmldocument
Structured record: https://osv.dev/vulnerability/GHSA-cr32-g25g-vxjj
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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