CVE-2025-28970CWE-502

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

Critical · published June 27, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
44.7
In the wild
Unconfirmed
What it is

🔥 A deserialization flaw in WP Optimize by xTraffic lets attackers inject objects, potentially leading to full control over your WordPress site! Think of it like a restaurant that accepts orders without checking what’s actually in the dish — the chef could prepare anything, including a recipe for disaster. This vulnerability opens the door for attackers to cook up malicious code that could wreak havoc. If exploited, an attacker could manipulate the application to execute arbitrary code, paving the way for data theft, unauthorized changes, or even complete site takeover. Your users could be at risk, and the integrity of your site could crumble in seconds!

Put simply

Think of it like a restaurant that accepts orders without checking what’s actually in the dish — the chef could prepare anything, including a recipe for disaster. This vulnerability opens the door for attackers to cook up malicious code that could wreak havoc. The vulnerability allows untrusted data to be deserialized, leading to object injection. This flaw affects versions of WP Optimize by xTraffic up to 5.1.6, enabling attackers to control the application’s behavior when it processes serialized objects.

What to do

If exploited, an attacker could manipulate the application to execute arbitrary code, paving the way for data theft, unauthorized changes, or even complete site takeover. Your users could be at risk, and the integrity of your site could crumble in seconds! Update to the latest version of WP Optimize by xTraffic immediately, ensuring you’re running a patched version. Review your object handling code and, if possible, implement validation checks to filter untrusted inputs. Don’t wait—act now to safeguard your site! You've got this! With these steps, you'll fortify your WordPress site and earn your security hero badge! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00541 · 44.7th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2025-06-27T11:52Z
EPSS history
Timeline
  • 27 JUN 11:52Z
    WordPress WP Optimize By xTraffic plugin <= 5.1.6 - PHP Object Injection Vulnerability
    cvelistv5