SilverStripe Vulnerability on 'isDev', 'isTest' and 'flush' $_GET validation
When a secure token parameter is provided to a SilverStripe site (such as isDev or flush) an empty token parameter can be provided in order to bypass normal authentication parameters.
For instance, http://www.mysite.com/?isDev=1&isDevtoken will force a site to dev mode. Alternatively, "flush" could also be used in succession to cause excessive load on a victim site and risk denial of service.
The fix in this case is to ensure that empty tokens fail the validation check.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | silverstripe/framework | >= 3.0.0, < 3.0.14, >= 3.1.0, < 3.1.13 | 3.0.14, 3.1.13 |
References
- https://github.com/silverstripe/silverstripe-framework/commit/a978b891e13d22dddee7e0735a7032f13964447d
- https://github.com/silverstripe/silverstripe-framework/commit/cb6717c3f85753bdc30087f280720c6d3f639ff3
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2015-014-1.yaml
- https://github.com/silverstripe/silverstripe-framework
- https://www.silverstripe.org/software/download/security-releases/ss-2015-014
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L- Weakness (CWE)
CWE-639- Platform
- Composer
- Package
silverstripe/framework- Disclosed
- 23.05.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-g4hp-pfvf-vm5w - 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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SilverStripe Vulnerability on 'isDev', 'isTest' and 'flush' $_GET validation this entry
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