PT-2021-11875 · WordPress · Nextgen Gallery

Published 2021-02-09 · Updated 2021-02-12 · CVE-2020-35943

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions: NextGEN Gallery plugin versions prior to 3.5.0

Description: A Cross-Site Request Forgery (CSRF) issue allows File Upload by bypassing CSRF protection, which can be achieved by not including a nonce parameter.

Recommendations: For versions prior to 3.5.0, update to version 3.5.0 or later to resolve the issue. As a temporary workaround, consider implementing additional validation for the nonce parameter in the affected API endpoint until a patch is available. Restrict access to the file upload functionality to minimize the risk of exploitation.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2020-35943

Affected Products

Nextgen Gallery

References · 4

• 🔥 https://wordfence.com/blog/2021/02/severe-vulnerabilities-patched-in-nextgen-gallery-affect-over-800000-wordpress-sites · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-35943 · Security Note
• https://osv.dev/vulnerability/CVE-2020-35943 · Vendor Advisory
• https://t.me/cibsecurity/23317 · Telegram Post