Simple Download Counter <= 2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'text' Shortcode Attribute
Summary
| CVE | CVE-2026-4278 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-03-26 05:16:39 UTC |
| Updated | 2026-03-30 13:26:50 UTC |
| Description | The Simple Download Counter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sdc_menu' shortcode in all versions up to, and including, 2.3. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes, specifically the 'text' and 'cat' attributes. The 'text' attribute is output directly into HTML content on line 159 without any escaping (e.g., esc_html()). The 'cat' attribute is used unescaped in HTML class attributes on lines 135 and 157 without esc_attr(). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. |
Risk And Classification
Primary CVSS: v3.1 6.4 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
EPSS: 0.000630000 probability, percentile 0.196810000 (date 2026-04-01)
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 | 6.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| 3.1 | CNA | DECLARED | 6.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Specialk | Simple Download Counter | affected * 2.3 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/simple-download-counter/trunk/inc/functions-shortcode... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/simple-download-counter/trunk/inc/functions-shortcode... | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/f23dec73-9031-4829-a84b-4979c... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/simple-download-counter/tags/2.3/inc/functions-shortc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/simple-download-counter/trunk/inc/functions-shortcode... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/simple-download-counter/tags/2.3/inc/functions-shortc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/simple-download-counter/trunk/inc/functions-shortcode... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/simple-download-counter/tags/2.3/inc/functions-shortc... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/simple-download-counter/tags/2.3/inc/functions-shortc... | [email protected] | plugins.trac.wordpress.org | |
| 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: Djaidja Moundjid (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-03-16T17:45:27.000Z | Vendor Notified |
| CNA | 2026-03-25T00:00:00.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.