Unsafe deserialization in Yii 2
Impact
Remote code execution in case application calls unserialize() on user input containing specially crafted string.
Patches
2.0.38
Workarounds
Add the following to BatchQueryResult.php:
public function __sleep()
{
throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
}
public function __wakeup()
{
throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
}For more information
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Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | yiisoft/yii2 | < 2.0.38 | 2.0.38 |
References
- https://github.com/yiisoft/yii2/security/advisories/GHSA-699q-wcff-g9mj
- https://nvd.nist.gov/vuln/detail/CVE-2020-15148
- https://github.com/yiisoft/yii2/commit/9abccb96d7c5ddb569f92d1a748f50ee9b3e2b99
- https://github.com/FriendsOfPHP/security-advisories/blob/master/yiisoft/yii2/CVE-2020-15148.yaml
- https://www.yiiframework.com/news/303/yii-2-0-38
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H- Weakness (CWE)
CWE-502- Platform
- Composer
- Package
yiisoft/yii2- Disclosed
- 15.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-699q-wcff-g9mj - CC BY 4.0
Vulnerability history: yiisoft/yii2
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
- 12
- First → latest
- 09.2020 05.2026
- Without a fix
- 0
- Exploited in attacks
- 1
Severity breakdown
- Critical 2
- High 5
- Medium 5
Disclosures per year
- 2020: 1
- 2021: 0
- 2022: 6
- 2023: 1
- 2024: 2
- 2025: 1
- 2026: 1
-
Unsafe deserialization in Yii 2 this entry
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