What is CVE-2023-5820?

CVE-2023-5820 is a critical-severity vulnerability in I13websolution Thumbnail Slider With Lightbox, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.6/10. Published 2023-10-27.

How severe is CVE-2023-5820?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Is CVE-2023-5820 known to be exploited?

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

CSRF in I13websolution Thumbnail Slider With Lightbox

CVE-2023-5820

The Thumbnail Slider With Lightbox plugin for WordPress is vulnerable to Cross-Site Request Forgery in version 1.0. This is due to missing or incorrect nonce validation on the addedit functionality. This makes it possible for unauthenticated attackers to upload arbitrary files via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.003 (24.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

I13websolution Thumbnail_slider_with_lightbox — versions 1.0
Nik00726 Thumbnail Slider With Lightbox — versions 1.0

Weakness classification (CWE)

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

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Product)
security@wordfence.com (Patch)

Frequently asked questions

What is CVE-2023-5820?: CVE-2023-5820 is a critical-severity vulnerability in I13websolution Thumbnail Slider With Lightbox, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.6/10. Published 2023-10-27.
How severe is CVE-2023-5820?: Critical severity. CVSS v3 base score is 9.6 out of 10.
Is CVE-2023-5820 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.