What is CVE-2026-25449?

CVE-2026-25449 is a critical-severity vulnerability in Shinetheme Traveler, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-03-18.

How severe is CVE-2026-25449?

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

Deserialization in Shinetheme Traveler

CVE-2026-25449

Deserialization of Untrusted Data vulnerability in shinetheme Traveler traveler allows Object Injection.This issue affects Traveler: from n/a through < 3.2.8.1.

Vulnerability class: Insecure Deserialization

EPSS: 0.001 (19.2th 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

Shinetheme Traveler — versions 0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

patchstack.com/database/Wordpress/Theme/traveler/vulnerability/wordpress-travel… (vdb-entry)

Frequently asked questions

What is CVE-2026-25449?: CVE-2026-25449 is a critical-severity vulnerability in Shinetheme Traveler, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-03-18.
How severe is CVE-2026-25449?: Critical severity. CVSS v3 base score is 9.8 out of 10.