{"cve":"CVE-2021-27564","nvd":{"published":"2021-02-22T17:15:12.847","modified":"2026-06-17T03:45:08.583","status":"Modified","description":"A stored XSS issue exists in Appspace 6.2.4. After a user is authenticated and enters an XSS payload under the groups section of the network tab, it is stored as the group name. Whenever another member visits that group, this payload executes.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["https://github.com/viperbluff/Appspace-Ver-6.2.4-Stored-Xss","https://github.com/viperbluff/Appspace-Ver-6.2.4-Stored-Xss"],"products":["appspace:appspace"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-27564","score":0.00541,"percentile":0.45532,"date":"2026-10-31"},"kev":null,"osv":[],"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."]}