CVE-2025-27792CWE-352

Opal vulnerable to CSRF protection bypass

High · published March 11, 2025

CVSS v4.0
7.7
EPSS
0%
Percentile
20.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
7.7 · HIGH
Vector
CVSS: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
EPSS
0.00291 · 20.5th percentile
Weakness
CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2025-03-11T21:49Z
EPSS history
Timeline
  • 11 MAR 21:49Z
    Opal vulnerable to CSRF protection bypass
    cvelistv5