Thumbnail Slider With Lightbox <= 1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via Image Title
Summary
| CVE | CVE-2023-5621 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-10-18 08:15:08 UTC |
| Updated | 2026-04-08 18:18:30 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 4.8 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 4.8 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| 3.1 | [email protected] | Secondary | 4.4 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
| 3.1 | CNA | DECLARED | 4.4 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
RequiredScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | I13websolution | Thumbnail Slider With Lightbox | 1.0 | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Nik00726 | Thumbnail Slider With Lightbox | affected 1.0 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 403 Forbidden | af854a3a-2127-422b-91ae-364da2661108 | plugins.trac.wordpress.org | Product |
| Thumbnail Slider With Lightbox <= 1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via Image Title | af854a3a-2127-422b-91ae-364da2661108 | www.wordfence.com | Third Party Advisory |
| Thumbnail Slider With Lightbox – WordPress plugin | WordPress.org | af854a3a-2127-422b-91ae-364da2661108 | wordpress.org | Product |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Ala Arfaoui (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2023-10-17T00:00:00.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.