CVE-2026-111738: CWE-863 Incorrect Authorization in Speed Optimizer
Description
The Speed Optimizer WordPress plugin before 7.8.5 does not verify network-level privilege before applying an option change to the whole multisite network, nor restrict which option may be changed, allowing a site administrator who is not a Super Admin to create or overwrite network-wide options.
CVSS v3.1
Score 5.5medium
Affected software
Speed Optimizer
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-111738 describes an incorrect authorization vulnerability (CWE-863) in the Speed Optimizer WordPress plugin versions prior to 7.8.5. The plugin fails to verify that a user has network-level privileges before applying option changes across the entire multisite network. Additionally, it does not restrict which options may be changed, enabling a site administrator who is not a Super Admin to create or overwrite network-wide options, potentially impacting the configuration and security of the multisite network.
Potential Impact
An attacker with site administrator privileges but without Super Admin rights can modify or overwrite network-wide options in a multisite WordPress environment. This could lead to unauthorized changes affecting the entire network, potentially degrading security or functionality at the network level.
Mitigation Recommendations
Upgrade the Speed Optimizer plugin to version 7.8.5 or later where this authorization issue is fixed. No other mitigation guidance is provided, and no temporary fixes are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-10-16T17:02:27.982Z
- State
- PUBLISHED
Threat ID: 6adafb984d27ba8daad77785
Added to database: 10/23/2026, 06:15:52 UTC
Last enriched: 10/23/2026, 06:31:02 UTC
Last updated: 10/23/2026, 15:10:11 UTC
Views: 5
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