WordPress plugin
WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical1
- High1
- Medium12
- Low0
All WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Unauthenticated Information Exposure ≤4.1.0Update to 4.2.0 | CVE-2026-108686 | |
| Medium5.3 | Missing Authorization ≤4.1.0Update to 4.2.0 | CVE-2026-108685 | |
| Medium4.9 | Authenticated (Admin+) SQL Injection <4.1.0Update to 4.1.0 | CVE-2026-108124 | |
| Medium6.5 | Authenticated (Contributor+) SQL Injection 4.0.0 – <4.1.0Update to 4.1.0 | CVE-2026-108125 | |
| Medium4.9 | Authenticated (Administrator+) SQL Injection ≤4.0.0Update to 4.0.1 | CVE-2026-42708 | |
| Medium6.5 | Authenticated (Author+) SQL Injection ≤3.9.1Update to 3.10.0 | CVE-2026-11977 | |
| Medium6.5 | Authenticated (Contributor+) SQL Injection ≤3.9.1Update to 3.10.0 | CVE-2026-57643 | |
| Medium6.1 | Reflected DOM-Based Cross-Site Scripting via url Parameter ≤5.5.8Update to 5.5.9 | CVE-2024-13362 | |
| Medium4.9 | Authenticated (Administrator+) SQL Injection ≤3.8.2Update to 3.8.3 | CVE-2024-56247 | |
| High7.2 | Authenticated (Administrator+) SQL Injection ≤3.8.1Update to 3.8.2 | CVE-2024-8757 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤3.6.7Update to 3.6.8 | CVE-2024-37101 | |
| Medium4.3 | Missing Authorization to Rating Manipulation ≤3.6.4Update to 3.6.5 | CVE-2024-34387 | |
| Medium4.3 | Missing Authorization ≤3.7.4Update to 3.7.5 | CVE-2024-34389 | |
| Critical9.8 | Privilege Escalation ≤3.2.3Update to 3.3.0 | — |
- Medium5.3Unauthenticated Information Exposure
≤4.1.0Update to 4.2.0
- Medium5.3Missing Authorization
≤4.1.0Update to 4.2.0
- Medium4.9Authenticated (Admin+) SQL Injection
<4.1.0Update to 4.1.0
- Medium6.5Authenticated (Contributor+) SQL Injection
4.0.0 – <4.1.0Update to 4.1.0
- Medium4.9Authenticated (Administrator+) SQL Injection
≤4.0.0Update to 4.0.1
- Medium6.5Authenticated (Author+) SQL Injection
≤3.9.1Update to 3.10.0
- Medium6.5Authenticated (Contributor+) SQL Injection
≤3.9.1Update to 3.10.0
- Medium6.1Reflected DOM-Based Cross-Site Scripting via url Parameter
≤5.5.8Update to 5.5.9
- Medium4.9Authenticated (Administrator+) SQL Injection
≤3.8.2Update to 3.8.3
- High7.2Authenticated (Administrator+) SQL Injection
≤3.8.1Update to 3.8.2
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤3.6.7Update to 3.6.8
- Medium4.3Missing Authorization to Rating Manipulation
≤3.6.4Update to 3.6.5
- Medium4.3Missing Authorization
≤3.7.4Update to 3.7.5
- Critical9.8Privilege Escalation
≤3.2.3Update to 3.3.0
WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars: common questions
Does WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars have known vulnerabilities?
Yes. VulnCrest Radar lists 14 known vulnerabilities in WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars: 1 critical, 1 high, 12 medium. At least one is not fixed in the latest version.
How do I check which version of WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars vulnerability?
CVE-2026-108686, published Oct 27, 2026: Post Author <= 4.1.0 - Unauthenticated Information Exposure. Severity: Medium (CVSS 5.3).
Is any WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars vulnerability listed in CISA KEV?
No. None of the known WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars vulnerabilities is currently listed in the CISA KEV catalog.