What is CVE-2023-6049?

CVE-2023-6049 is a critical-severity vulnerability in Estatik, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2024-01-15.

How severe is CVE-2023-6049?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-6049 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Estatik

CVE-2023-6049

The Estatik Real Estate Plugin WordPress plugin before 4.1.1 unserializes user input via some of its cookies, which could allow unauthenticated users to perform PHP Object Injection when a suitable gadget chain is present on the blog

Vulnerability class: Insecure Deserialization

Published 2024-01-15 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.009 (58.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Estatik
Estatik Real Estate Plugin — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/8cfd8c1f-2834-4a94-a3fa-c0cfbe78a8b7 (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2023-6049?: CVE-2023-6049 is a critical-severity vulnerability in Estatik, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2024-01-15.
How severe is CVE-2023-6049?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-6049 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.