What is CVE-2024-33553?

CVE-2024-33553 is a critical-severity vulnerability in 8theme Xstore Core, classified under Deserialization of Untrusted Data. CVSS score: 9.0/10. Published 2024-04-29.

How severe is CVE-2024-33553?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Is CVE-2024-33553 known to be exploited?

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

Deserialization in 8theme Xstore Core

CVE-2024-33553

Deserialization of Untrusted Data vulnerability in 8theme XStore Core.This issue affects XStore Core: from n/a through 5.3.5.

Vulnerability class: Insecure Deserialization

Published 2024-04-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.3% 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/et-core-plugin/wordpress-xstore-core-plug… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2024-33553?: CVE-2024-33553 is a critical-severity vulnerability in 8theme Xstore Core, classified under Deserialization of Untrusted Data. CVSS score: 9.0/10. Published 2024-04-29.
How severe is CVE-2024-33553?: Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2024-33553 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.