What’s Vulnerable › Vulnerabilities

CVE-2016-20010

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-05 · updated 2026-06-17

Description

EWWW Image Optimizer before 2.8.5 allows remote command execution because it relies on a protection mechanism involving boolval, which is unavailable before PHP 5.5.

Affected products

• nosilver4u EWWW Image Optimizer: before 2.8.5 — fixed in 2.8.5

How to fix

Upgrade to a fixed version: nosilver4u EWWW Image Optimizer 2.8.5. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/ewww-image-optimizer/trunk/changelog.txt
• https://www.wordfence.com/blog/2016/06/vulnerability-ewww-image-optimizer/
• https://plugins.trac.wordpress.org/browser/ewww-image-optimizer/trunk/changelog.txt
• https://www.wordfence.com/blog/2016/06/vulnerability-ewww-image-optimizer/

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