CVE-2020-35942

Name: CVE-2020-35942
Creator: NVD / NIST
Published: 2021-02-09T18:15:44.777+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.38%

Last modified Jun 17, 2026

CVE-2020-35942 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A Cross-Site Request Forgery (CSRF) issue in the NextGEN Gallery plugin before 3.5.0 for WordPress allows File Upload and Local File Inclusion via settings modification, leading to Remote Code Execution and XSS. (It is possible to bypass CSRF protection by simply not including a nonce parameter.). EPSS estimates a 1.38% chance of exploitation in the next 30 days.

Description

A Cross-Site Request Forgery (CSRF) issue in the NextGEN Gallery plugin before 3.5.0 for WordPress allows File Upload and Local File Inclusion via settings modification, leading to Remote Code Execution and XSS. (It is possible to bypass CSRF protection by simply not including a nonce parameter.)

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.38%

68.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Imagely	Nextgen Gallery	< 3.5.0

References

https://www.wordfence.com/blog/2021/02/severe-vulnerabilities-patched-in-nextgen-gallery-affect-over-800000-wordpress-sites/Exploit, Third Party Advisory
https://www.wordfence.com/blog/2021/02/severe-vulnerabilities-patched-in-nextgen-gallery-affect-over-800000-wordpress-sites/Exploit, Third Party Advisory

Timeline

Published: Feb 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-35942?

How severe is CVE-2020-35942?

CVE-2020-35942 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.38% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35942?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-35942?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST