{"id":"CVE-2023-27494","aliases":["GHSA-9c6g-qpgj-rvxw","PYSEC-2023-50"],"url":"https://o3.security/vulnerability/CVE-2023-27494","summary":"Streamlit Cross-site Scripting vulnerability","details":"Streamlit, software for turning data scripts into web applications, had a cross-site scripting (XSS) vulnerability in versions 0.63.0 through 0.80.0. Users of hosted Streamlit app(s) were vulnerable to a reflected XSS vulnerability. An attacker could craft a malicious URL with Javascript payloads to a Streamlit app. The attacker could then trick the user into visiting the malicious URL and, if successful, the server would render the malicious javascript payload as-is, leading to XSS. Version 0.81.0 contains a patch for this vulnerability.","published":"2023-03-16T20:29:17.975Z","modified":"2026-08-12T03:51:33.095899971Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"streamlit","fixedVersion":"0.81.0"}],"fix":{"url":"https://github.com/streamlit/streamlit/commit/afcf880c60e5d7538936cc2d9721b9e1bc02b075","label":"streamlit/streamlit@afcf880"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27494.json"},{"type":"ADVISORY","url":"https://github.com/streamlit/streamlit/security/advisories/GHSA-9c6g-qpgj-rvxw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27494"},{"type":"FIX","url":"https://github.com/streamlit/streamlit/commit/afcf880c60e5d7538936cc2d9721b9e1bc02b075"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:33.095899971Z"}}