What is CVE-2023-52181?

CVE-2023-52181 is a critical-severity vulnerability in Presslabs Theme Per User, classified under Deserialization of Untrusted Data. CVSS score: 10.0/10. Published 2023-12-31.

How severe is CVE-2023-52181?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2023-52181 known to be exploited?

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

Deserialization in Presslabs Theme Per User

CVE-2023-52181

Deserialization of Untrusted Data vulnerability in Presslabs Theme per user.This issue affects Theme per user: from n/a through 1.0.1.

Vulnerability class: Insecure Deserialization

Published 2023-12-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (49.1th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

20142995/nuclei-templates

References

patchstack.com/database/vulnerability/theme-per-user/wordpress-theme-per-user-p… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-52181?: CVE-2023-52181 is a critical-severity vulnerability in Presslabs Theme Per User, classified under Deserialization of Untrusted Data. CVSS score: 10.0/10. Published 2023-12-31.
How severe is CVE-2023-52181?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2023-52181 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.