CVE-2020-27358

An issue was discovered in REDCap 8.11.6 through 9.x before 10. The messenger's CSV feature (that allows users to export their conversation threads as CSV) allows non-privileged users to export one another's conversation threads by changing the thread_id parameter in the request to the endpoint Messenger/messenger_download_csv.php?title=Hey&thread_id={THREAD_ID}.

• CWE-276

• https://github.com/seb1055/cve-2020-27358-27359Exploit, Third Party Advisory
• https://www.evms.edu/research/resources_services/redcap/redcap_change_log/Exploit, Vendor Advisory
• https://www.ruse.tech/blog/38Third Party Advisory
• https://github.com/seb1055/cve-2020-27358-27359Exploit, Third Party Advisory
• https://www.evms.edu/research/resources_services/redcap/redcap_change_log/Exploit, Vendor Advisory
• https://www.ruse.tech/blog/38Third Party Advisory

Published

Nov 2, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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