High severity · published Sep 30, 2026
CVE-2026-94121
WordPress 10Web Booster – Website speed optimization, Cache & Page Speed optimizer plugin <= 2.33.6 - PHP Object Injection vulnerability
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
Contributor PHP Object Injection in 10Web Booster – Website speed optimization, Cache & Page Speed optimizer <= 2.33.6 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
1B
10Web Booster – Website speed optimization, Cache & Page Speed optimizer · 10Web
through 2.33.6 · source: vendor
Affected product
1B
10Web Booster – Website speed optimization, Cache & Page Speed optimizer
10Web
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94121
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-94121
vdb-entry
https://patchstack.com/database/wordpress/plugin/tenweb-speed-optimizer/vulnerability/wordpress-10web-booster-website-speed-optimization-cache-page-speed-optimizer-plugin-2-33-6-php-object-injection-vulnerability?_s_id=cve
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