What’s Vulnerable › Vulnerabilities

CVE-2021-34640: Securimage-WP-Fixed <= 3.5.4 Reflected Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-11 · updated 2026-06-17
• Weakness: CWE-79

Description

The Securimage-WP-Fixed WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of $_SERVER['PHP_SELF'] in the ~/securimage-wp.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.5.4.

Affected products

• Drew Phillips Securimage-WP: through 3.5.4

References

• https://plugins.trac.wordpress.org/browser/securimage-wp-fixed/trunk/securimage-wp.php#L628
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34640
• https://plugins.trac.wordpress.org/browser/securimage-wp-fixed/trunk/securimage-wp.php#L628
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34640

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