Smush – Lazy Load Images, Optimize & Compress Images <= 3.16.4 — Missing Authorization to Resmush List Deletion
CVE-2023-3352Published · Updated Action summary
Affected: ≤3.16.4Update to 3.16.5 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?
Smush – Image Optimization, Compression, Lazy Load, WebP & CDN wp-smushit
- Affected≤ 3.16.4
- Patched in3.16.5
Update to 3.16.5 or newer.
You are affected if you run ≤ 3.16.4. Version 3.16.5 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Smush – Image Optimization, Compression, Lazy Load, WebP & CDN.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 3.16.5, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Smush – Image Optimization, Compression, Lazy Load, WebP & CDN to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Truoc Phan, An Đặng.
The Smush plugin for WordPress is vulnerable to unauthorized deletion of the resmush list due to a missing capability check on the delete_resmush_list() function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to delete the resmush list for Nextgen or the Media Library.
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 Smush – Image Optimization, Compression, Lazy Load, WebP & CDN
All 11| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Authenticated (Author+) Insecure Direct Object Reference <4.3.6Update to 4.3.6 | CVE-2026-118241 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤4.3.5Update to 4.3.6 | CVE-2026-120845 | |
| Low2.7 | Missing Authorization ≤4.3.3Update to 4.3.4 | CVE-2026-110039 | |
| High7.5 | Unauthenticated Denial of Service ≤4.2.0Update to 4.3.0 | CVE-2026-81285 | |
| High7.2 | Authenticated (Administrator+) Remote Code Execution <4.3.2Update to 4.3.2 | CVE-2026-19223 |
- Medium4.3Authenticated (Author+) Insecure Direct Object Reference
<4.3.6Update to 4.3.6
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤4.3.5Update to 4.3.6
- Low2.7Missing Authorization
≤4.3.3Update to 4.3.4
- High7.5Unauthenticated Denial of Service
≤4.2.0Update to 4.3.0
- High7.2Authenticated (Administrator+) Remote Code Execution
<4.3.2Update to 4.3.2
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. [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.