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CVE-2021-3824

6.1 MEDIUM

OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL

Published: 2021-09-23 · Last updated: 2026-06-17

Severity and scoring

CVSS
6.1 MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
CWE-79, CWE-84

Affected products

VendorProduct
openvpnopenvpn_access_server

Description

OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-9560 — Privilege escalation via background service of OpenVPN Connect 3.5.1 through 3.8.1 on macOS allows attackers to execute arbitrary command... (7.8 HIGH)
  • CVE-2021-3547 — OpenVPN 3 Core Library version 3.6 and 3.6.1 allows a man-in-the-middle attacker to bypass the certificate authentication by issuing an u... (7.4 HIGH)
  • CVE-2021-3613 — OpenVPN Connect 3.2.0 through 3.3.0 allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if ... (7.8 HIGH)
  • CVE-2021-3606 — OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file... (7.8 HIGH)
  • CVE-2014-5455 — Unquoted Windows search path vulnerability in the ptservice service prior to PrivateTunnel version 3.0 (Windows) and OpenVPN Connect vers... (5.3 MEDIUM)

Same CWE

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  • 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)