Vulnerability · Published Oct 18, 2023 · Assigned by Wordfence

CVE-2023-5621Thumbnail Slider With Lightbox <= 1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via Image Title

Medium 4.4

In plain English

A medium-severity cross-site scripting in Thumbnail Slider With Lightbox from nik00726. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.5%top 58.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

The Thumbnail Slider With Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Image Title field in versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected products (as reported)

VendorProductVersions
nik00726 Thumbnail Slider With Lightbox 0 – through 1.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

References