Vulnerability · Published Aug 16, 2021 · Assigned by Wordfence
CVE-2021-34658Simple Popup Newsletter <= 1.4.7 Reflected Cross-Site Scripting
Medium 6.1
In plain English
A medium-severity cross-site scripting in Simple Popup Newsletter from Simple Popup Newsletter. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.9%top 40.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Simple Popup Newsletter | Simple Popup Newsletter | 1.4.7 – through 1.4.7 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N