What is CVE-2020-35943?

CVE-2020-35943 is a medium-severity vulnerability in Imagely Nextgen Gallery, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-02-09.

How severe is CVE-2020-35943?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2020-35943 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Imagely Nextgen Gallery

CVE-2020-35943

A Cross-Site Request Forgery (CSRF) issue in the NextGEN Gallery plugin before 3.5.0 for WordPress allows File Upload. (It is possible to bypass CSRF protection by simply not including a nonce parameter.)

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-02-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Imagely Nextgen Gallery

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.wordfence.com/blog/2021/02/severe-vulnerabilities-patched-in-nextgen-galler… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-35943?: CVE-2020-35943 is a medium-severity vulnerability in Imagely Nextgen Gallery, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-02-09.
How severe is CVE-2020-35943?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-35943 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.