Vulnerability Details CVE-2021-34658
The Simple Popup Newsletter WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of $_SERVER['PHP_SELF'] in the ~/simple-popup-newsletter.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.4.7.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 43.7%
CVSS Severity
CVSS v3 Score 6.1
CVSS v2 Score 4.3
References
- https://plugins.trac.wordpress.org/browser/simple-popup-newsletter/trunk/simple-popup-newsletter.php#L319
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34658
- https://plugins.trac.wordpress.org/browser/simple-popup-newsletter/trunk/simple-popup-newsletter.php#L319
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34658
Products affected by CVE-2021-34658
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cpe:2.3:a:keszites:simple_popup_newsletter:-
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cpe:2.3:a:keszites:simple_popup_newsletter:1.4.7