CVE-2025-28970

WordPress WP Optimize By xTraffic plugin <= 5.1.6 - PHP Object Injection Vulnerability

9.8 Critical

Deserialization of Untrusted Data vulnerability in pep.vn WP Optimize By xTraffic wp-optimize-by-xtraffic allows Object Injection.This issue affects WP Optimize By xTraffic: from n/a through <= 5.1.6.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.54%Up 0.5 points since Jun 27, 2025

What each source reports

CVE List Score used 9.8

WordPress WP Optimize By xTraffic plugin <= 5.1.6 - PHP Object Injection Vulnerability

Record: CVE-2025-28970
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

EUVDEUVD-2025-19269 9.8

Record: EUVD-2025-19269
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-6p5x-5h49-3fm9 9.8

Deserialization of Untrusted Data vulnerability in pep.vn WP Optimize By xTraffic allows Object...

Deserialization of Untrusted Data vulnerability in pep.vn WP Optimize By xTraffic allows Object Injection. This issue affects WP Optimize By xTraffic: from n/a through 5.1.6.

Record: GHSA-6p5x-5h49-3fm9
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

NVD 9.8

Record: CVE-2025-28970
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

Affected products

pep.vn wp optimize by xtraffic

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-28970 is a critical vulnerability (CVSS 9.8) in Pep.vn Wp Optimize By Xtraffic, published June 27, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. No source names a fixed version.