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CVE-2020-27358

An issue was discovered in REDCap 8.11.6 through 9.x before 10. The messenger's CSV feature (that...

4.3 MediumPublic exploit

CVE-2020-27358 is a medium vulnerability (CVSS 4.3) in Vanderbilt Redcap, published October 31, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.03%, the 81st percentile. No source names a fixed version.

What does this mean?
Severity
4.3 MediumCVSS 3.1, NVD
Exploit chance
2.03%EPSS, 81st percentile
Exploitation
None known1 public exploit
Fixed in
No fix listedNo source names one

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}.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

2.03%Up 1.2 points since Apr 14, 2021
90%50%10%1%

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubsebastian-mora/cve-2020-27358-273592020-11-02

What each source reports

NVD Score used4.3

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}.

Record
CVE-2020-27358
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:P/I:N/A:N
Weakness
CWE-276
Updated
2026-11-02
CVE ListNo score

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}.

Record
CVE-2020-27358
Updated
2026-11-02
EUVDEUVD-2020-19870No score

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}.

Record
EUVD-2020-19870
Updated
2026-11-03
GitHub AdvisoriesGHSA-3f4q-q2jq-qg34No score

An issue was discovered in REDCap 8.11.6 through 9.x before 10. The messenger's CSV feature (that...

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}.

Record
GHSA-3f4q-q2jq-qg34
Weakness
CWE-276
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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