WordPress Traveler theme <= 3.1.8 - PHP Object Injection vulnerability

published 2025-03-27 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-8520

cvss: 9.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

Deserialization of Untrusted Data vulnerability in shinetheme Traveler traveler.This issue affects Traveler: from n/a through < 3.2.1.

Patch / fix

fixed in 1

shinetheme Traveler 3.2.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 19 mo ago (2025-03-28)

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

shinetheme Traveler

Classification

Weakness

CWE-502 Deserialization of Untrusted Data

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/Wordpress/Theme/traveler/vulnerability/wordpress-traveler-theme-3-1-8-php-object-injection-vulnerabi
vdb-entry

Sources

CVE List CVE-2025-26873
NVD CVE-2025-26873

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary