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CVE-2021-34634

HIGH 8.8 CVSS 3.1
Published
August 5, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-352
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Affected WordPress components

  • sola-newsletters Plugin · sola-newsletters
    Confirmed match Homeless
    From 4.0.23 (including) to 4.0.23 (including); Up to and including 4.0.23
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • SolaPlugins Nifty Newsletters — From 4.0.23 (including) to 4.0.23 (including)
  • sola-newsletters_project sola-newsletters — Up to and including 4.0.23

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/sola-newsletters/trunk/sola-newsletters.php#L774 Exploit, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34634 Third Party Advisory
  • nvd.nist.gov Official NVD record