🔐 CVE Alert

CVE-2019-25217

CRITICAL 9.8

SiteGround Optimizer <= 5.0.12 - Missing Authorization

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

The SiteGround Optimizer plugin for WordPress is vulnerable to authorization bypass leading to Remote Code Execution and Local File Inclusion in versions up to, and including, 5.0.12 due to incorrect use of an access control attribute on the switch_php function called via the /switch-php REST API route. This allows attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

CWE CWE-862
Vendor siteground
Product speed optimizer – the all-in-one performance-boosting plugin
Published Oct 16, 2024
Last Updated Apr 8, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

siteground / Speed Optimizer – The All-In-One Performance-Boosting Plugin
0 < 5.0.13

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/657f3bd7-2cdc-4eb6-ba50-7c7fca468df0?source=cve blog.sucuri.net: https://blog.sucuri.net/2019/03/vulnerability-disclosure-siteground-optimizer-caldera-forms.html

Credits

Marc-Alexandre Montpas