Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 4.8 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.04%. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. |
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Alert meAnalysisAIv1 – Mar 28, 2026
A vulnerability, which was classified as problematic, has been found in givanz Vvveb up to 1.0.5.php?module=settings/post-types of the component Add Type Handler. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A vulnerability, which was classified as problematic, has been found in givanz Vvveb up to 1.0.5.php?module=settings/post-types of the component Add Type Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.6 is able to address this issue. The patch is named b53c7161da606f512b7efcb392d6ffc708688d49/605a70f8729e4d44ebe272671cb1e43e3d6ae014. It is recommended to upgrade the affected component. Affected products include: Vvveb. Version information: up to 1.0.5..
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionCVE.org
A vulnerability, which was classified as problematic, has been found in givanz Vvveb up to 1.0.5. This issue affects some unknown processing of the file /vadmin123/index.php?module=settings/post-types of the component Add Type Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.6 is able to address this issue. The patch is named b53c7161da606f512b7efcb392d6ffc708688d49/605a70f8729e4d44ebe272671cb1e43e3d6ae014. It is recommended to upgrade the affected component.
Executive ViewAI
Organizations using givanz Vvveb should be aware of moderate risk from CVE-2025-8521, a cross-site scripting vulnerability rated CVSS 4.8. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available. A patch is available and should be applied during regular vulnerability management.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
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
Stored cross-site scripting in Vvveb prior to 1.0.8.1 allows authenticated users with media upload and rename permission
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,
Exploit-DB