EUVD-2026-27889Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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 NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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
Lifecycle Timeline
4DescriptionCVE.org
Vvveb before version 1.0.8.2 contains an authenticated remote code execution vulnerability in the admin code editor that allows low-privilege authenticated users to execute arbitrary code by exploiting insufficient file extension restrictions. Attackers with editor, author, contributor, or site_admin roles can write a malicious .htaccess file to map arbitrary extensions to the PHP handler, then upload PHP code with that extension to achieve unauthenticated remote code execution when the file is accessed via HTTP.
AnalysisAI
Remote code execution in Vvveb CMS versions before 1.0.8.2 enables low-privilege authenticated users (editor, author, contributor, or site_admin roles) to escalate privileges and execute arbitrary PHP code. Attackers exploit the admin code editor's insufficient file extension validation by first uploading a malicious .htaccess file that maps arbitrary extensions to the PHP handler, then uploading PHP code disguised with that extension. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires authenticated access with editor, author, contributor, or site_admin role privileges in Vvveb CMS (CVSS PR:L). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is HIGH despite the PR:L authentication requirement. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with compromised contributor-level credentials (obtained via phishing or password reuse) logs into the Vvveb admin panel and navigates to the code editor feature. They create a new file named .htaccess containing 'AddHandler application/x-httpd-php .jpg' to instruct Apache to treat .jpg files as executable PHP. … |
| Remediation | Upgrade to Vvveb CMS version 1.0.8.2 or later immediately, available from https://github.com/givanz/Vvveb/releases/tag/1.0.8.2. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all Vvveb CMS instances in your environment and document current versions. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More from same product – last 7 days
Authentication bypass in Discuz! X5.0 releases 20260320 through 20260501 allows unauthenticated remote attackers to acce
Authenticated remote code execution in Discuz! X5.0 releases 20260320 through 20260501 allows administrators to chain a
Unauthenticated PHP Object Injection in the Happyforms WordPress plugin (versions <= 1.26.13) allows remote attackers to
Unauthenticated PHP Object Injection in the Broadcast Live Video WordPress plugin (versions prior to 7.1.3) allows remot
Unauthenticated PHP object injection in the WordPress plugin 'Integration for Keap/Infusionsoft and Contact Form 7, WPFo
Share
External POC / Exploit Code
Leaving vuln.today