CVE-2026-39471— WordPress ShortPixel Image Optimizer plugin <= 6.4.3 - PHP Object Injection vulnerability
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| ShortPixel | ShortPixel Image Optimizer | n/a≤ 6.4.3 | affected |
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I. Basic Information for CVE-2026-39471
Vulnerability Information
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Vulnerability Title
WordPress ShortPixel Image Optimizer plugin <= 6.4.3 - PHP Object Injection vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
ShortPixel Image Optimizer 反序列化漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
shortpixel image optimizer是shortpixel公司开源的一款图片压缩优化工具。 WShortPixel Image Optimizer 6.4.3及之前版本存在反序列化漏洞，该漏洞源于PHP对象注入问题，可能导致具有作者权限的攻击者进行远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ShortPixel | ShortPixel Image Optimizer | n/a ~ 6.4.3 | - |
II. Public POCs for CVE-2026-39471
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same vendor: ShortPixel
- CVE-2026-5714
Enable Media Replace <= 4.1.8 - Authenticated (Author+) Stor - CVE-2026-4335
ShortPixel Image Optimizer <= 6.4.3 - Authenticated (Author+ - CVE-2026-2732
Enable Media Replace <= 4.1.7 - Improper Authorization to Au - CVE-2026-1246
ShortPixel Image Optimizer <= 6.4.2 - Authenticated (Editor+ - CVE-2025-11378
ShortPixel Image Optimizer <= 6.3.4 - Authenticated (Contrib
Same weakness: CWE-502
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V. Comments for CVE-2026-39471
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