Vulnerability record/PUBLISHED/Published Nov 13, 2026 06:00:06 UTC
CVE-2026-118063
The Advance Guest Post WordPress plugin through 1.9 does not properly validate uploaded files, relying on a case-sensitive and incomplete extension check that unauthenticated users can trivially bypass, allowing them to upload arbitrary files, including executable PHP variants, into a web-reachable directory, which can lead to remote code execution depending on the server configuration.
Base score9.8/ 10
SeverityCriticalCVSS 3.1
Exploitability / impact
CVSS metric breakdown
Base severityCritical
Attack vectorNetworkAV
Attack complexityLowAC
Privileges requiredNonePR
User interactionNoneUI
ScopeUnchangedS
Confidentiality impactHighC
Integrity impactHighI
Availability impactHighA
CVSS vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.
Record context
CVE Numbering AuthorityWPScan
Last updatedNov 13, 2026 18:46:30 UTC
PublishedNov 13, 2026 06:00:06 UTC
ReservedOct 27, 2026 15:38:33 UTC
Credits
- WPScan