MEDIUMnpm →
showdown allows stored cross-site scripting through table header ID injection
showdown allows stored cross-site scripting through table header ID injection
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-2026-59710
- https://github.com/showdownjs/showdown/issues/1046
- https://github.com/showdownjs/showdown/commit/e5cab1e9a5dcea2bb3cbf888863fa7e65ab37edf
- https://github.com/showdownjs/showdown
- https://www.vulncheck.com/advisories/showdown-stored-xss-via-unescaped-table-header-id-attribute-injection
Structured record: https://osv.dev/vulnerability/GHSA-22g5-r2x5-97cx
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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