{"cve":"CVE-2023-26491","nvd":{"published":"2023-03-03T23:15:12.427","modified":"2026-06-17T05:43:27.303","status":"Modified","description":"RSSHub is an open source and extensible RSS feed generator. When the URL parameters contain certain special characters, it returns an error page that does not properly handle XSS vulnerabilities, allowing for the execution of arbitrary JavaScript code. Users who access the deliberately constructed URL are affected. This vulnerability was fixed in version c910c4d28717fb860fbe064736641f379fab2c91. Please upgrade to this or a later version, there are no known workarounds.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://github.com/DIYgod/RSSHub/commit/c910c4d28717fb860fbe064736641f379fab2c91","https://github.com/DIYgod/RSSHub/security/advisories/GHSA-32gr-4cq6-5w5q","https://github.com/DIYgod/RSSHub/commit/c910c4d28717fb860fbe064736641f379fab2c91","https://github.com/DIYgod/RSSHub/security/advisories/GHSA-32gr-4cq6-5w5q"],"products":["rsshub:rsshub"],"source":"nvd","synced_at":"2026-10-19T21:37:41.955480748+00:00"},"epss":{"cve":"CVE-2023-26491","score":0.00434,"percentile":0.3768,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-32gr-4cq6-5w5q","url":"https://osv.dev/vulnerability/GHSA-32gr-4cq6-5w5q","summary":"rsshub vulnerable to Cross-site Scripting via unvalidated URL parameters","modified":"2026-09-10T03:49:52.362083439Z","packages":[{"ecosystem":"npm","name":"rsshub","purl":"pkg:npm/rsshub","ranges":["<1.0.0-master.c910c4d"],"fixed":["1.0.0-master.c910c4d"]}]}],"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."]}