WordPress plugin
Rating by BestWebSoft <= 1.5 — Rating Denial of Service
CVE-2021-25121Published · Updated Action summary
Affected: ≤1.5Update to 1.6 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:N/I:N/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:NIntegrity- None
A:LAvailability- Low
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Rating by BestWebSoft rating-bws
- Affected≤ 1.5
- Patched in1.6
Update to 1.6 or newer.
You are affected if you run ≤ 1.5. Version 1.6 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Rating by BestWebSoft.
- 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 1.6, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Rating by BestWebSoft to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Drew Jones.
The Rating by BestWebSoft WordPress plugin through 1.5 does not validate the submitted rating, allowing submission of long integer, causing a Denial of Service on the post/page when a user submit such rating
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 Rating by BestWebSoft
All 3| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.8 | Authenticated (Subscriber+) PHP Object Injection ≤1.7No patch available | CVE-2025-39527 | |
| Medium6.1 | Reflected Cross-Site Scripting <0.2Update to 0.2 | CVE-2017-18530 |
- High8.8Authenticated (Subscriber+) PHP Object Injection
≤1.7No patch available
- Medium6.1Reflected Cross-Site Scripting
<0.2Update to 0.2
Timeline
CVE published
Severity medium, CVSS 5.3
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.