{"cve":"CVE-2020-27359","nvd":{"published":"2020-11-02T21:15:28.710","modified":"2026-06-17T03:09:10.427","status":"Modified","description":"A cross-site scripting (XSS) issue in REDCap 8.11.6 through 9.x before 10 allows attackers to inject arbitrary JavaScript or HTML in the Messenger feature. It was found that the filename of the image or file attached in a message could be used to perform this XSS attack. A user could craft a message and send it to anyone on the platform including admins. The XSS payload would execute on the other account without interaction from the user on several pages.","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/seb1055/cve-2020-27358-27359","https://www.evms.edu/research/resources_services/redcap/redcap_change_log/","https://www.ruse.tech/blog/38","https://github.com/seb1055/cve-2020-27358-27359","https://www.evms.edu/research/resources_services/redcap/redcap_change_log/"],"products":["evms:redcap"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-27359","score":0.00811,"percentile":0.56947,"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."]}