WordPress plugin
Error Log Viewer <= 1.1.1 — Arbitrary File Deletion
CVE-2021-24966Published · Updated Action summary
Affected: ≤1.1.1Update to 1.1.2 or newer
All remediation steps- Severity
- Medium5.5
- CVSS
- 5.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:HPrivileges required- High
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:HIntegrity- High
A:LAvailability- Low
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Error Log Viewer by BestWebSoft error-log-viewer
- Affected≤ 1.1.1
- Patched in1.1.2
Update to 1.1.2 or newer.
You are affected if you run ≤ 1.1.1. Version 1.1.2 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Error Log Viewer by BestWebSoft.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 1.1.2, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Error Log Viewer by BestWebSoft to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Ceylan Bozogullarindan.
The Error Log Viewer WordPress plugin through 1.1.1 does not validate the path of the log file to clear, allowing high privilege users to clear arbitrary files on the web server, including those outside of the blog folder
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 Error Log Viewer by BestWebSoft
All 5| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.9 | Authenticated (Administrator+) Arbitrary File Read ≤1.1.6Update to 1.1.7 | CVE-2025-9950 | |
| Medium5.3 | Sensitive Information Exposure ≤1.1.2Update to 1.1.3 | CVE-2023-6821 | |
| High8.8 | Cross-Site Request Forgery ≤1.1.1Update to 1.1.2 | CVE-2021-24761 | |
| Medium6.1 | Reflected Cross-Site Scripting <1.0.6Update to 1.0.6 | CVE-2017-18562 |
- Medium4.9Authenticated (Administrator+) Arbitrary File Read
≤1.1.6Update to 1.1.7
- Medium5.3Sensitive Information Exposure
≤1.1.2Update to 1.1.3
- High8.8Cross-Site Request Forgery
≤1.1.1Update to 1.1.2
- Medium6.1Reflected Cross-Site Scripting
<1.0.6Update to 1.0.6
Timeline
CVE published
Severity medium, CVSS 5.5
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.