Smush – Image Optimization, Compression, Lazy Load, WebP & CDN < 4.3.6 — Authenticated (Author+) Insecure Direct Object Reference
CVE-2026-118241Published · Updated Action summary
Affected: <4.3.6Update to 4.3.6 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
- 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< 4.3.6
- Patched in4.3.6
Update to 4.3.6 or newer.
You are affected if you run < 4.3.6. Version 4.3.6 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under 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 4.3.6, 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 Jashid Sany.
The Smush – Image Optimization, Compression, Lazy Load, WebP & CDN plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to 4.3.6. This is due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with author-level access and above, to perform an unauthorized action.
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 |
|---|---|---|---|
| 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 | |
| Low2.7 | Authenticated (Admin+) Directory Traversal ≤3.17.0Update to 3.17.1 | CVE-2025-22288 |
- 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
- Low2.7Authenticated (Admin+) Directory Traversal
≤3.17.0Update to 3.17.1
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.