CVE-2021-34658 is a Reflected Cross-Site Scripting (XSS) vulnerability affecting the Simple Popup Newsletter WordPress plugin, versions up to and including 1.4.7, due to improper sanitization of the $_SERVER['PHP_SELF'] variable. This allows unauthenticated attackers to inject malicious web scripts. With a CVSS score of 6.1 (Medium), the vulnerability requires user interaction and can lead to limited data compromise and integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.4.7CPE matchmatch criteria | cpe:2.3:a:keszites:simple_popup_newsletter:*:*:*:*:*:wordpress:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.