EUVD-2026-23854Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
7DescriptionCVE.org
Vvveb prior to 1.0.8.1 contains a stored cross-site scripting vulnerability that allows authenticated users with media upload and rename permissions to execute arbitrary JavaScript by bypassing MIME type validation and renaming uploaded files to executable extensions. Attackers can prepend a GIF89a header to HTML/JavaScript payloads to bypass upload validation, rename the file to .html extension, and execute malicious scripts in an administrator's browser session to create backdoor accounts and upload malicious plugins for remote code execution.
AnalysisAI
Stored cross-site scripting in Vvveb prior to 1.0.8.1 allows authenticated users with media upload and rename permissions to execute arbitrary JavaScript in administrator browsers by bypassing MIME type validation with a GIF89a header prepend, renaming files to .html extensions, and injecting malicious payloads that can create backdoor accounts or upload remote code execution plugins. Publicly available exploit code exists and vendor-released patch 1.0.8.1 is available. Real-world risk is moderate due to authentication requirement and required user interaction (administrator must visit malicious page), but privilege escalation path to RCE via plugin upload makes this a critical persistence vector.
An issue in vvveb CMS v.1.0.6 allows a remote attacker to execute arbitrary code via the Plugin mechanism. Rated critica
A vulnerability was found in givanz Vvveb 1.0.5. Rated medium severity (CVSS 5.1), this vulnerability is remotely exploi
Arbitrary File Upload vulnerability in VvvebJs before version 1.7.5, allows unauthenticated remote attackers to execute
Reflected Cross-Site Scripting (XSS) vulnerability in VvvebJs before version 1.7.7, allows remote attackers to execute a
A security flaw has been discovered in givanz Vvveb up to 1.0.7.2. Rated medium severity (CVSS 5.5), this vulnerability
A security vulnerability has been detected in givanz Vvveb 1.0.7.2. Rated medium severity (CVSS 5.3), this vulnerability
Remote code execution in Vvveb CMS v1.0.8 allows authenticated administrators to execute arbitrary system commands as ww
Remote code execution in Vvveb CMS versions prior to 1.0.8.1 allows unauthenticated attackers to inject arbitrary PHP co
Hard-coded credentials in Vvveb's Docker deployment expose the entire application database to unauthenticated remote att
Insecure Direct Object Reference in Vvveb CMS prior to 1.0.8.4 allows any authenticated low-privileged Vendor to read, d
Broken object-level authorization in Vvveb CMS prior to 1.0.8.4 allows an authenticated low-privilege Vendor to access,
Privilege escalation in Vvveb CMS versions prior to 1.0.8.1 allows authenticated low-privileged users to inject role_id=
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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