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CVE-2021-36841

MEDIUM 5.4 CVSS 3.1
Published
September 27, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
audit@patchstack.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

Authenticated Stored Cross-Site Scripting (XSS) vulnerability in YITH Maintenance Mode (WordPress plugin) versions <= 1.3.7, vulnerable parameter &yith_maintenance_newsletter_submit_label. Possible even when unfiltered HTML is disallowed by WordPress configuration.

Affected WordPress components

  • YITH Maintenance Mode Plugin · yith-maintenance-mode
    Confirmed match Abandoned
    From <= 1.3.7 (including) to 1.3.7 (including)
    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

  • YITH YITH Maintenance Mode (WordPress plugin) — From <= 1.3.7 (including) to 1.3.7 (including)
  • yithemes yith_maintenance_mode — Up to and including 1.3.7

References

  • patchstack.com https://patchstack.com/database/vulnerability/yith-maintenance-mode/wordpress-yith-maintenance-mode-plugin-1-3-7-authenticated-stored-cross-site-scripting-xss-vulnerability Third Party Advisory
  • wordpress.org https://wordpress.org/plugins/yith-maintenance-mode/#developers Product, Third Party Advisory
  • nvd.nist.gov Official NVD record