{"id":"CVE-2026-44651","summary":"SillyTavern: Reflected XSS vulnerability in the CORS proxy middleware","details":"SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to 1.18.0, when fetch(url) throws, the code sends:\nres.status(500).send('Error occurred while trying to proxy to: ' + url + ' ' + error). The url value is attacker-controlled (req.params.url) and is not HTML-escaped before rendering. This vulnerability is fixed in 1.18.0.","aliases":["GHSA-xc4x-2452-5gc9"],"modified":"2026-07-08T08:13:28.213372152Z","published":"2026-05-29T17:49:19.494Z","database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44651.json","cwe_ids":["CWE-79"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44651.json"},{"type":"ADVISORY","url":"https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-xc4x-2452-5gc9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44651"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sillytavern/sillytavern","events":[{"introduced":"0"},{"fixed":"51ad27fb86d39a3daca3adaa970375c9670c12df"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.18.0"}],"source":"AFFECTED_FIELD"}}],"versions":["1.17.0","1.16.0","1.15.0","1.14.0","1.13.5","1.13.4","1.13.3","1.13.2","1.13.1","1.13.0","1.12.14","1.12.13","1.12.12","1.12.11","1.12.10","1.12.9","1.12.8","1.12.7","1.12.6","1.12.5","1.12.4","1.12.3","1.12.2","1.12.1","1.12.0-6","1.12.0","1.11.8","1.11.7","1.11.6","1.11.5","1.11.4-1","1.11.4","1.11.3","1.11.2","1.11.1","1.11.0","1.10.10","1.10.9","1.10.8","1.10.7","1.10.6","1.10.5","1.10.4","1.10.3","1.10.2","1.10.1","1.10.0","1.9.7","1.9.6","1.9.5","1.9.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44651.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}