CVE-2020-27358 json
An issue was discovered in REDCap 8.11.6 through 9.x before 10.
published 2020-10-31 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19870
- cvss
- 4.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
Summary
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}.
Patch / fix
- vanderbilt redcap 10.0
Exploit prediction
2.03% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- evms.edu https://www.evms.edu/research/resources_services/redcap/redcap_change_log/ referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/seb1055/cve-2020-27358-27359 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-276 Incorrect Default Permissions
References
-
evms.edu
/research/resources_services/redcap/redcap_change_log/
exploit, vendor-advisory
-
github.com
/seb1055/cve-2020-27358-27359
exploit, third-party-advisory
-
ruse.tech
/blog/38
third-party-advisory
Sources
- CVE List CVE-2020-27358
- NVD CVE-2020-27358
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.