Autoptimize <= 2.1.0 — Unauthenticated Local File Inclusion
0d4e3560-2208-4122-812e-0c506fe45126Published · Updated Action summary
Affected: ≤2.1.0Update to 2.1.1 or newer
All remediation steps- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-98 Local File Inclusion
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Autoptimize autoptimize
- Affected≤ 2.1.0
- Patched in2.1.1
Update to 2.1.1 or newer.
You are affected if you run ≤ 2.1.0. Version 2.1.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Autoptimize.
- 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 2.1.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Autoptimize to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Matt Barry.
The Autoptimize plugin for WordPress is vulnerable to Local File Inclusion in versions up to, and including, 2.1.0. This allows unauthenticated attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included. This requires both JS and CSS aggregation, and the 'Also aggregate inline CSS' option to be set.
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 Autoptimize
All 15| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.4 | Unauthenticated Stored Cross-Site Scripting via Comment Author Name ≤3.1.15.1Update to 3.1.16 | CVE-2026-78471 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via REQUEST_URI Path ≤3.1.15.1Update to 3.1.16 | CVE-2026-14995 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting <2.4.2Update to 2.4.2 | CVE-2026-3220 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via 'ao_post_preload' Meta Value ≤3.1.14Update to 3.1.15 | CVE-2026-2352 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via Lazy-loaded Image Attributes ≤3.1.14Update to 3.1.15 | CVE-2026-2430 |
- Medium5.4Unauthenticated Stored Cross-Site Scripting via Comment Author Name
≤3.1.15.1Update to 3.1.16
- High7.2Unauthenticated Stored Cross-Site Scripting via REQUEST_URI Path
≤3.1.15.1Update to 3.1.16
- High7.2Unauthenticated Stored Cross-Site Scripting
<2.4.2Update to 2.4.2
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'ao_post_preload' Meta Value
≤3.1.14Update to 3.1.15
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via Lazy-loaded Image Attributes
≤3.1.14Update to 3.1.15
Same weakness (Local File Inclusion)
All Local File Inclusion| 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 critical, CVSS 9.8
Record last updated
Sources & licenses
- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- 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.