What is CVE-2023-52219?

CVE-2023-52219 is a critical-severity vulnerability in Gecka Terms Thumbnails, classified under Deserialization of Untrusted Data. CVSS score: 9.9/10. Published 2024-01-08.

How severe is CVE-2023-52219?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Is CVE-2023-52219 known to be exploited?

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

Deserialization in Gecka Terms Thumbnails

CVE-2023-52219

Deserialization of Untrusted Data vulnerability in Gecka Gecka Terms Thumbnails.This issue affects Gecka Terms Thumbnails: from n/a through 1.1.

Vulnerability class: Insecure Deserialization

Published 2024-01-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.9% 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

References

patchstack.com/database/vulnerability/gecka-terms-thumbnails/wordpress-gecka-te… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-52219?: CVE-2023-52219 is a critical-severity vulnerability in Gecka Terms Thumbnails, classified under Deserialization of Untrusted Data. CVSS score: 9.9/10. Published 2024-01-08.
How severe is CVE-2023-52219?: Critical severity. CVSS v3 base score is 9.9 out of 10.
Is CVE-2023-52219 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.