CVE-2026-39471
WordPress ShortPixel Image Optimizer plugin <= 6.4.3 - PHP Object Injection vulnerability
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- 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 ShortPixel Image Optimizer plugin <= 6.4.3 - PHP Object Injection vulnerability
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
- Record
CVE-2026-39471- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-36935
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
- Record
EUVD-2026-36935- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8wj8-vcgv-j3hf
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
- Record
GHSA-8wj8-vcgv-j3hf- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.
- Record
CVE-2026-39471- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/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-2026-39471 is a high vulnerability (CVSS 7.2) in Shortpixel Image Optimizer, published June 15, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 38th percentile. No source names a fixed version.