CVE-2021-34634

Public Exploit
Nifty Newsletters <= 4.0.23 - Cross-Site Request Forgery to Stored Cross-Site Scripting

Description

The Nifty Newsletters WordPress plugin is vulnerable to Cross-Site Request Forgery via the sola_nl_wp_head function found in the ~/sola-newsletters.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 4.0.23.

Remediation

Solution:

  • Uninstall the WordPress Plugin.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.11%
Third-Party Advisory wordpress.org Third-Party Advisory wordfence.com
Affected: SolaPlugins Nifty Newsletters
Published at:
Updated at:

References

Link Tags
https://plugins.trac.wordpress.org/browser/sola-newsletters/trunk/sola-newsletters.php#L774 third party advisory exploit
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34634 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-34634?
CVE-2021-34634 has been scored as a high severity vulnerability.
How to fix CVE-2021-34634?
To fix CVE-2021-34634: Uninstall the WordPress Plugin.
Is CVE-2021-34634 being actively exploited in the wild?
It is possible that CVE-2021-34634 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34634?
CVE-2021-34634 affects SolaPlugins Nifty Newsletters.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.