CVE-2023-6527
The Email Subscription Popup plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the HTTP_REFERER header in all versions up to, and including, 1.2.18 due to insufficient input sanitization and output escaping.
Does this matter?
Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own.
Description
The Email Subscription Popup plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the HTTP_REFERER header in all versions up to, and including, 1.2.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.37% probability · 31th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- i13websolution/email subscription popup
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/email-subscribe/tags/1.2.19/wp-email-subscription.php?rev=3005188#L2125Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5f84814e-f7b7-4228-b331-63027a0770af?source=cveThird Party Advisory
- https://plugins.trac.wordpress.org/browser/email-subscribe/tags/1.2.19/wp-email-subscription.php?rev=3005188#L2125Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5f84814e-f7b7-4228-b331-63027a0770af?source=cveThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.