Deserialization in Phpfox

CVE-2023-46817

An issue was discovered in phpFox before 4.8.14. The url request parameter passed to the /core/redirect route is not properly sanitized before being used in a call to the unserialize() PHP function. This can be exploited by remote, unauthenticated attackers to inject arbitrary PHP objects into the application scope, allowing them to perform a variety of attacks, such as executing arbitrary PHP code.

Vulnerability class: Insecure Deserialization

EPSS: 0.018 (76.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-46817?
CVE-2023-46817 is a critical-severity vulnerability in Phpfox, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2023-11-03.
How severe is CVE-2023-46817?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-46817 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.