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Vulnerability DatabaseCVE-2021-4017
CVE-2021-4017:
PHP vulnerability analysis and mitigation
Overview
Showdoc was found to be vulnerable to Cross-Site Request Forgery (CSRF) as identified in CVE-2021-4017. The vulnerability was discovered and reported in December 2021, affecting versions up to (excluding) 2.9.13 of the Showdoc application (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability is classified under CWE-352 (Cross-Site Request Forgery) (NVD, CVE).
Impact
The CSRF vulnerability could potentially allow attackers to perform unauthorized actions on behalf of authenticated users. Given the high CVSS score, successful exploitation could lead to significant compromise of confidentiality, integrity, and availability of the affected system (NVD).
Mitigation and workarounds
A patch has been released to address this vulnerability. The fix includes implementing cookie security measures by adding the Strict SameSite attribute to PHPSESSID (GitHub Patch).
Additional resources
Source: This report was generated using AI
Related PHP vulnerabilities:
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