Simple Download Counter <= 2.3 — Authenticated (Contributor+) Stored Cross-Site Scripting via 'text' Shortcode Attribute
CVE-2026-4278Published · Updated Action summary
Affected: ≤2.3Update to 2.3.1 or newer
All remediation steps- Severity
- Medium6.4
- CVSS
- 6.4CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Simple Download Counter simple-download-counter
- Affected≤ 2.3
- Patched in2.3.1
Update to 2.3.1 or newer.
You are affected if you run ≤ 2.3. Version 2.3.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Simple Download Counter.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.3.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Simple Download Counter to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to zaim.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Simple Download Counter
All 5| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.9 | Authenticated (Administrator+) Arbitrary File Read via Path Traversal ≤2.2.2Update to 2.2.3 | CVE-2025-13677 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤2.2Update to 2.2.1 | CVE-2025-46240 | |
| Medium6.5 | Authenticated (Author+) Arbitrary File Read ≤2.0Update to 2.1 | CVE-2025-1730 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting 1.6 – 1.6Update to 1.6.1 | CVE-2023-4838 |
- Medium4.9Authenticated (Administrator+) Arbitrary File Read via Path Traversal
≤2.2.2Update to 2.2.3
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤2.2Update to 2.2.1
- Medium6.5Authenticated (Author+) Arbitrary File Read
≤2.0Update to 2.1
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
1.6 – 1.6Update to 1.6.1
Same weakness (Cross-Site Scripting)
All Cross-Site Scripting| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 6.4
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.