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WordPress plugin

LWS Optimize – All-in-One Speed Booster & Cache Tools < 3.4 — Missing Authorization

CVE-2026-16042Published · Updated

Action summary

Affected: <3.4Update to 3.4 or newer

All remediation steps
Watch plugin
Severity
Medium4.3
CVSS
4.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-862 Missing Authorization
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

LWS Optimize – All-in-One Speed Booster & Cache Tools lws-optimize

  1. Affected< 3.4
  2. Patched in3.4

Update to 3.4 or newer.

You are affected if you run < 3.4. Version 3.4 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under LWS Optimize – All-in-One Speed Booster & Cache Tools.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 3.4, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch LWS Optimize – All-in-One Speed Booster & Cache Tools to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Omar Elshopky.

The LWS Optimize – All-in-One Speed Booster & Cache Tools plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to 3.4. This makes it possible for authenticated attackers, with subscriber-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

More in LWS Optimize – All-in-One Speed Booster & Cache Tools

All 5
More vulnerabilities in LWS Optimize – All-in-One Speed Booster & Cache Tools
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting
≤4.1.1Update to 4.1.2
CVE-2026-16032
Medium4.9Authenticated (Editor+) Arbitrary File Read
≤3.3.19Update to 3.3.20
CVE-2026-12089
Medium4.3Cross-Site Request Forgery
≤1.9.1Update to 2.0
CVE-2024-30541
High8.8Missing Authorization Checks
≤2.1Update to 2.1.5
—

Same weakness (Missing Authorization)

All Missing Authorization
Other Missing Authorization vulnerabilities
SeverityVulnerabilityCVEPublished
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
CVE-2026-120688
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
CVE-2026-125055
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
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 4.3

  2. 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.

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