CVE-2021-23262: Snakeyaml deserialization vulnerability bypass
First published: Thu Dec 02 2021(Updated: )
Authenticated administrators may modify the main YAML configuration file and load a Java class resulting in RCE.
Credit: security@craftersoftware.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Craftercms Crafter Cms | >=3.1.0<3.1.13 |
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Frequently Asked Questions
What is CVE-2021-23262?
CVE-2021-23262 is a vulnerability that allows authenticated administrators to modify the main YAML configuration file and load a Java class, which can result in remote code execution (RCE).
What software is affected by CVE-2021-23262?
Craftercms Crafter Cms versions 3.1.0 to 3.1.13 are affected by CVE-2021-23262.
What is the severity of CVE-2021-23262?
CVE-2021-23262 has a severity rating of 7.2, which is considered high.
How can I fix CVE-2021-23262?
To fix CVE-2021-23262, it is recommended to upgrade to a version of Craftercms Crafter Cms that is not affected by the vulnerability.
Where can I find more information about CVE-2021-23262?
You can find more information about CVE-2021-23262 in the Craftercms Crafter Cms security advisory at [https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120105](https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120105).
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