CVE-2023-40035: Craft CMS vulnerable to Remote Code Execution via validatePath bypass

Vulnerability summary

CVE-2023-40035 is a high (CVSS 7.2) Injection vulnerability in craftcms cms. EPSS estimates a 2.32% chance of exploitation in the next 30 days, higher than 83.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 23-08-2023
   PublishedVulnerability first disclosed.
2. 02-10-2024
   Last modifiedVulnerability information updated.

Description

Craft is a CMS for creating custom digital experiences on the web and beyond. Bypassing the validatePath function can lead to potential remote code execution. This vulnerability can lead to malicious control of vulnerable systems and data exfiltrations. Although the vulnerability is exploitable only in the authenticated users, configuration with ALLOW_ADMIN_CHANGES=true, there is still a potential security threat (Remote Code Execution). This issue has been patched in version 4.4.15 and version 3.8.15.

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.