CVE-2021-34640

MEDIUM NUCLEI

securimage-wp-fixed <= 3.5.4 - Reflected Cross-Site Scripting via PHP_SELF

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-34640 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

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.

Nuclei Templates (1)

WordPress Securimage-WP-Fixed <=3.5.4 - Cross-Site Scripting
MEDIUMby dhiyaneshDK

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34640

Scores

CVSS v3 6.1
EPSS 0.0222
EPSS Percentile 80.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
securimage-wp-fixed_project/securimage-wp-fixed < 3.5.4
Published Aug 11, 2021
Tracked Since Feb 18, 2026