CVE-2025-26873
WordPress Traveler theme <= 3.1.8 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in shinetheme Traveler traveler.This issue affects Traveler: from n/a through < 3.2.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
WordPress Traveler theme <= 3.1.8 - PHP Object Injection vulnerability
Deserialization of Untrusted Data vulnerability in shinetheme Traveler traveler.This issue affects Traveler: from n/a through < 3.2.1.
- Record
CVE-2025-26873- CVSS 3.1
- 9.0 Critical
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2025-8520
Deserialization of Untrusted Data vulnerability in shinetheme Traveler traveler.This issue affects Traveler: from n/a through < 3.2.1.
- Record
EUVD-2025-8520- CVSS 3.1
- 9.0 Critical
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3wrq-rm5m-mgw2
Deserialization of Untrusted Data vulnerability in Shinetheme Traveler.This issue affects...
Deserialization of Untrusted Data vulnerability in Shinetheme Traveler.This issue affects Traveler: from n/a through 3.1.8.
- Record
GHSA-3wrq-rm5m-mgw2- CVSS 3.1
- 9.0 Critical
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
Deserialization of Untrusted Data vulnerability in shinetheme Traveler traveler.This issue affects Traveler: from n/a through < 3.2.1.
- Record
CVE-2025-26873- CVSS 3.1
- 9.0 Critical
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-26873 is a critical vulnerability (CVSS 9.0) in Hclsoftware Traveler, published March 27, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. No source names a fixed version.
References
patchstack.com/database/Wordpress/Theme/traveler/vulnerability/wordpress-traveler-theme-3-1-8-php-object-injection-vulnerability?_s_id=cve
nvd.nist.gov/vuln/detail/CVE-2025-26873
github.com/advisories/GHSA-3wrq-rm5m-mgw2