{"cve":"CVE-2023-24539","nvd":{"published":"2023-05-11T16:15:09.600","modified":"2026-06-17T05:39:29.840","status":"Modified","description":"Angle brackets (<>) are not considered dangerous characters when inserted into CSS contexts. Templates containing multiple actions separated by a '/' character can result in unexpectedly closing the CSS context and allowing for injection of unexpected HTML, if executed with untrusted input.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","score":7.3},"cwes":["CWE-74","CWE-94"],"references":["https://go.dev/cl/491615","https://go.dev/issue/59720","https://groups.google.com/g/golang-announce/c/MEb0UyuSMsU","https://pkg.go.dev/vuln/GO-2023-1751","https://go.dev/cl/491615"],"products":["golang:go"],"source":"nvd","synced_at":"2026-10-19T21:38:18.424950729+00:00"},"epss":{"cve":"CVE-2023-24539","score":0.01037,"percentile":0.63949,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GO-2023-1751","url":"https://osv.dev/vulnerability/GO-2023-1751","summary":"Improper sanitization of CSS values in html/template","modified":"2026-02-04T04:31:56.779446Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.19.9",">=1.20.0-0 <1.20.4"],"fixed":["1.19.9","1.20.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}