silverstripe/framework's User-Agent header not correctly invalidating user session
A security protection device in Session designed to protect session hijacking was not correctly functioning. This function intended to protect user sessions by detecting changes in the User-Agent header, but modifications to this header were not correctly invalidating the user session.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | silverstripe/framework | >= 3.5.0-rc1, < 3.5.6, >= 3.6.0-rc1, < 3.6.3 | 3.5.6, 3.6.3 |
References
- https://github.com/silverstripe/silverstripe-framework/commit/44de03da0147e6094b02602b7b73d5b1a1306d78
- https://github.com/silverstripe/silverstripe-framework/commit/d47667bb0768841e4b305fa95d5a4e2ba232c4ad
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2017-006-1.yaml
- https://github.com/silverstripe/silverstripe-framework
- https://www.silverstripe.org/download/security-releases/ss-2017-006
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-384- Platform
- Composer
- Package
silverstripe/framework- Disclosed
- 27.05.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-4qx8-j9vh-2628 - CC BY 4.0
Vulnerability history: silverstripe/framework
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 93
- First → latest
- 11.2019 08.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- High 13
- Medium 69
- Low 8
Disclosures per year
- 2019: 5
- 2020: 2
- 2021: 0
- 2022: 23
- 2023: 3
- 2024: 53
- 2025: 6
- 2026: 1
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