PT-2021-16335 · WordPress · Qr Redirector

Apple502J · Published 2021-11-17 · Updated 2021-11-19 · CVE-2021-24853

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions: QR Redirector WordPress plugin versions prior to 1.6

Description: The issue concerns a lack of capability and CSRF checks when saving bulk QR Redirector settings via the "qr save bulk" AJAX action. This could allow any authenticated user, such as a subscriber, to change the redirect response status code of arbitrary QR Redirects.

Recommendations: For versions prior to 1.6, update to version 1.6 or later to resolve the issue. As a temporary workaround, consider restricting access to the "qr save bulk" AJAX action to prevent unauthorized changes to QR Redirect settings.

Exploit

Fix

Improper Access Control

CSRF

Weakness Enumeration

CWE-284

CWE-352

Related Identifiers

CVE-2021-24853

Affected Products

Qr Redirector

References · 4

• 🔥 https://wpscan.com/vulnerability/240bed24-0315-4bbf-ba17-e4947e5ecacb · Exploit
• https://osv.dev/vulnerability/CVE-2021-24853 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24853 · Security Note
• https://t.me/cibsecurity/32500 · Telegram Post