Description
Drupal Core is prone to an arbitrary file overwrite vulnerability. This can be coupled with other existing vulnerabilities to affect the vulnerable application in various ways. Drupal Core versions 8.8.x ranging from 8.8.0 and up to and including 8.8.12 are vulnerable.
Remediation
Update to Drupal Core version 8.9.13 or latest
References
Related Vulnerabilities
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Joomla Other Vulnerability (CVE-2006-1028)
WordPress Plugin Flip Book 'php.php' Arbitrary File Upload (1.0)
WordPress Plugin Companion Auto Update Cross-Site Scripting (2.9.3)
WordPress Plugin WordPress Poll Multiple SQL Injection Vulnerabilities (33.5)