Deserialization of Untrusted Data in TableField - #VU18636

Detailed vulnerability description

The vulnerability allows a remote authenticated attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data during CSV export. A remote authenticated user with permissions to 'export tablefield' and ability to inject a malicious payload into an entity's field execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Sources

• https://backdropcms.org/security/backdrop-sa-contrib-2019-007