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CVE-2021-39340

4.8 MEDIUM

The Notification WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via ...

Published: 2021-11-01 · Last updated: 2026-06-17

Severity and scoring

CVSS
4.8 MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CWE
CWE-79

Affected products

VendorProduct
bracketspacenotification

Description

The Notification WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/src/classes/Utils/Settings.php file which made it possible for attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 7.2.4. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

Source: NVD

References

Related CVEs

Same CWE

  • CVE-2026-12425 — Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in PowerSchool Employee Access ...
  • CVE-2024-30476 — PowerStore contains a Stored Cross-Site Scripting Vulnerability in the PowerStore Manager (5.4 MEDIUM)
  • CVE-2026-54198 — Unauthenticated Cross Site Scripting (XSS) in Media LIbrary Assistant <= 3.35 versions (7.1 HIGH)
  • CVE-2026-54191 — Unauthenticated Cross Site Scripting (XSS) in Pods <= 3.3.8 versions (7.1 HIGH)
  • CVE-2026-39437 — Unauthenticated Cross Site Scripting (XSS) in Min Max Step Quantity Limits Manager for WooCommerce <= 5.2.2 versions (7.1 HIGH)