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CVE-2023-5820

24
FAUCET Score

CVE-2023-5820 is a Cross-Site Request Forgery (CSRF) vulnerability affecting version 1.0 of the Thumbnail Slider With Lightbox plugin for WordPress. This flaw stems from inadequate nonce validation during the add/edit functionality, allowing unauthenticated attackers to upload arbitrary files. With a CVSS score of 8.8 (High), this vulnerability has a network attack vector, low attack complexity, and can lead to high impacts on confidentiality, integrity, and availability if a site administrator is tricked into clicking a malicious link. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:i13websolution:thumbnail_slider_with_lightbox:1.0:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 29th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / changeset
Patch
wordpress.org / plugins/wp-responsive-slider-with-lightbox
Product
wordfence.com / threat-intel/vulnerabilities/id/e51e1cd2-6de9-4820-8bba-1c6b5053e2c1
Third Party Advisory