ShortPixel Adaptive Images <= 3.11.5 — Missing Authorization to Authenticated (Subscriber+) Third-Party Plugin Option Modification via 'causer' Parameter
CVE-2026-15345Published · Updated Action summary
Affected: ≤3.11.5Update to 3.11.6 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-862 Missing Authorization
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization shortpixel-adaptive-images
- Affected≤ 3.11.5
- Patched in3.11.6
Update to 3.11.6 or newer.
You are affected if you run ≤ 3.11.5. Version 3.11.6 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 3.11.6, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Wordfence PRISM.
The ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.11.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify configuration options of third-party plugins including ShortPixel Image Optimizer, Autoptimize, WP Rocket, Imagify, and LiteSpeed Cache, as well as the plugin's own API key and account binding. Exploitation requires the respective third-party plugins to be installed, as the impact against those plugins' settings is only reachable when those plugins are present.
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 ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization
All 11| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Subscriber+) Stored Cross-Site Scripting ≤3.11.3Update to 3.11.4 | CVE-2026-57342 | |
| Medium5.3 | Unauthenticated Arbitrary File Deletion ≤3.11.4Update to 3.11.5 | CVE-2026-56066 | |
| Medium4.4 | Authenticated (Administrator+) Stored Cross-Site Scripting via API URL ≤3.10.4Update to 3.10.5 | CVE-2025-6626 | |
| Medium4.3 | Missing Authorization ≤3.10.0Update to 3.10.1 | CVE-2025-30853 | |
| Medium5.5 | Authenticated (Admin+) Server-Side Request Forgery ≤3.8.3Update to 3.8.4 | CVE-2024-35172 |
- Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting
≤3.11.3Update to 3.11.4
- Medium5.3Unauthenticated Arbitrary File Deletion
≤3.11.4Update to 3.11.5
- Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting via API URL
≤3.10.4Update to 3.10.5
- Medium4.3Missing Authorization
≤3.10.0Update to 3.10.1
- Medium5.5Authenticated (Admin+) Server-Side Request Forgery
≤3.8.3Update to 3.8.4
Same weakness (Missing Authorization)
All Missing Authorization| 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 4.3
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.