{"cve":"CVE-2026-44651","nvd":{"published":"2026-05-29T19:16:24.993","modified":"2026-07-22T06:10:00.170","status":"Deferred","description":"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.","cvss_v4":{"vector":"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","score":6.9},"cvss_v3":null,"cwes":["CWE-79"],"references":["https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-xc4x-2452-5gc9"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-44651","score":0.00323,"percentile":0.25371,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-xc4x-2452-5gc9","url":"https://osv.dev/vulnerability/GHSA-xc4x-2452-5gc9","summary":"SillyTavern has a reflected XSS vulnerability in the CORS proxy middleware","modified":"2026-06-09T10:45:18.459862365Z","packages":[{"ecosystem":"npm","name":"sillytavern","purl":"pkg:npm/sillytavern","ranges":["<1.18.0"],"fixed":["1.18.0"]}]}],"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."]}