A Cross-Site Request Forgery (CSRF) issue in the NextGEN Gallery plugin before 3.5.0 for WordPress allows File Upload and Local File Inclus…

published 2021-02-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-23525

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits: 0; none known

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.)

Patch / fix

fixed in 1

imagely nextgen_gallery 3.5.0

Exploit prediction

1.44% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wordfence.com https://www.wordfence.com/blog/2021/02/severe-vulnerabilities-patched-in-nextgen-gallery-affect-over-800000-wordpress-sites/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-352 Cross-Site Request Forgery

Technology feeds

WordPress rss critical rss

References

wordfence.com /blog/2021/02/severe-vulnerabilities-patched-in-nextgen-gallery-affect-over-800000-wordpress-sites/
exploit, third-party-advisory

Sources

CVE List CVE-2020-35942
NVD CVE-2020-35942

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary