Flatsome <= 3.17.5 - Unauthenticated PHP Object Injection

2023-09-05 00:00

Rafie Muhammad

Strategic Overview

Status

Patched in 3.17.6

Affected ThemeFlatsome

Affected Version<= 3.17.5

CVSS9.8Critical

CVECVE-2023-40555

View all Flatsome vulnerabilities

Vulnerability Overview

The Flatsome theme for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 3.17.5 via deserialization of untrusted input. This allows unauthenticated attackers to inject a PHP Object. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Technical Analysis

REMEDIATION: Update to version 3.17.6, or a newer patched version --- IDENTIFIER: CWE-502 (Deserialization of Untrusted Data) The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

External References

https://www.cve.org/CVERecord?id=CVE-2023-40555 https://www.wordfence.com/threat-intel/vulnerabilities/id/bfc4863a-1b8c-4b13-9df1-18f221b40b26

CVSS Vector

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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