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THREATINT
PUBLISHED

CVE-2025-27792

Opal vulnerable to CSRF protection bypass



Description

Opal is OBiBa’s core database application for biobanks or epidemiological studies. Prior to version 5.1.1, the protections against cross-site request forgery (CSRF) were insufficient application-wide. The referrer header is checked, and if it is invalid, the server returns 403. However, the referrer header can be dropped from CSRF requests using `<meta name="referrer" content="never">`, effectively bypassing this protection. Version 5.1.1 contains a patch for the issue.

Reserved 2025-03-06 | Published 2025-03-11 | Updated 2025-03-12 | Assigner GitHub_M


HIGH: 7.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

Problem types

CWE-352: Cross-Site Request Forgery (CSRF)

Product status

< 5.1.1
affected

References

github.com/...a/opal/security/advisories/GHSA-27vw-29rq-c358

cve.org (CVE-2025-27792)

nvd.nist.gov (CVE-2025-27792)

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