GHSA-w3j4-76qw-wwjm

Suggest an improvement
Source
https://github.com/advisories/GHSA-w3j4-76qw-wwjm
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-w3j4-76qw-wwjm/GHSA-w3j4-76qw-wwjm.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-w3j4-76qw-wwjm
Aliases
Published
2021-09-07T23:08:24Z
Modified
2026-07-08T06:29:04Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
Older releases of better_errors open to Cross-Site Request Forgery attack
Details

Impact

better_errors prior to 2.8.0 did not implement CSRF protection for its internal requests. It also did not enforce the correct "Content-Type" header for these requests, which allowed a cross-origin "simple request" to be made without CORS protection. These together left an application with better_errors enabled open to cross-origin attacks.

As a developer tool, better_errors documentation strongly recommends addition only to the development bundle group, so this vulnerability should only affect development environments. Please ensure that your project limits better_errors to the development group (or the non-Rails equivalent).

Patches

Starting with release 2.8.x, CSRF protection is enforced. It is recommended that you upgrade to the latest release, or minimally to "~> 2.8.3".

Workarounds

There are no known workarounds to mitigate the risk of using older releases of better_errors.

References

For more information

If you have any questions or comments about this advisory, please

Database specific 
{
    "cwe_ids":  [
        "CWE-352"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2021-09-07T17:58:52Z",
    "nvd_published_at":  "2021-09-07T18:15:00Z",
    "severity":  "MODERATE"
}
References

Affected packages

RubyGems / better_errors

Package

Name
better_errors
Purl
pkg:gem/better_errors

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.8.0

Affected versions

0.*
0.0.1
0.0.2
0.0.3
0.0.4
0.0.5
0.0.6
0.0.7
0.0.8
0.1.0
0.1.1
0.2.0
0.3.0
0.3.2
0.5.0
0.6.0
0.7.0
0.7.2
0.8.0
0.9.0
1.*
1.0.0.rc1
1.0.0
1.0.1
1.1.0
2.*
2.0.0
2.1.0
2.1.1
2.2.0
2.3.0
2.4.0
2.5.0
2.5.1
2.6.0
2.7.0
2.7.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-w3j4-76qw-wwjm/GHSA-w3j4-76qw-wwjm.json"