User Private Files < 2.0.5 — Insecure Direct Object Reference
CVE-2023-4836Published · Updated Action summary
Affected: <2.0.5Update to 2.0.5 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:LConfidentiality- Low
I:NIntegrity- None
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
User Private Files – Secure File Sharing and Client Portal Plugin user-private-files
- Affected< 2.0.5
- Patched in2.0.5
Update to 2.0.5 or newer.
You are affected if you run < 2.0.5. Version 2.0.5 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under User Private Files – Secure File Sharing and Client Portal Plugin.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.0.5, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch User Private Files – Secure File Sharing and Client Portal Plugin to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Dmitrii Ignatyev.
The WordPress File Sharing Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to 2.0.5 (exclusive) via the upvf_pro_preview_file function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to gain access to files and folders belonging to other users.
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 User Private Files – Secure File Sharing and Client Portal Plugin
All 10| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Authenticated (Subscriber+) Information Exposure ≤2.1.8Update to 2.1.9 | CVE-2026-97331 | |
| Medium5.3 | Missing Authorization ≤2.1.0Update to 2.2.0 | CVE-2026-97332 | |
| Medium6.4 | Authenticated (Subscriber+) Stored Cross-Site Scripting via 'fldr_ttl' Parameter ≤2.1.6Update to 2.1.7 | CVE-2026-10093 | |
| Medium6.4 | Authenticated (Subscriber+) Stored Cross-Site Scripting ≤2.1.3Update to 2.1.4 | CVE-2024-13799 | |
| Medium4.3 | Insecure Direct Object Reference to Authenticated (Subscriber+) Private File Access ≤2.1.0Update to 2.1.1 | CVE-2024-7848 |
- Medium4.3Authenticated (Subscriber+) Information Exposure
≤2.1.8Update to 2.1.9
- Medium5.3Missing Authorization
≤2.1.0Update to 2.2.0
- Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting via 'fldr_ttl' Parameter
≤2.1.6Update to 2.1.7
- Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting
≤2.1.3Update to 2.1.4
- Medium4.3Insecure Direct Object Reference to Authenticated (Subscriber+) Private File Access
≤2.1.0Update to 2.1.1
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. 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.