CVE-2020-27358

Name: CVE-2020-27358
Creator: NVD / NIST
Published: 2020-11-02T21:15:28.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 2.03%

Last modified Jun 17, 2026

CVE-2020-27358 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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}.. EPSS estimates a 2.03% chance of exploitation in the next 30 days.

Description

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}.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

2.03%

78.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions
Vanderbilt	Redcap	>= 8.11.6, < 10.0

References

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

Timeline

Published: Nov 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27358?

How severe is CVE-2020-27358?

CVE-2020-27358 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 2.03% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27358?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27358?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST