CVE-2026-126380 PUBLISHED

Vvveb before 1.0.9.0 RCE via .phar Extension Denylist Bypass in Media Upload

Assigner: VulnCheck
Reserved: 10.11.2026 Published: 13.11.2026 Updated: 13.11.2026

Vvveb before 1.0.9.0 contains a denylist bypass in system/traits/media.php where '.phar' is misconfigured with a leading dot, allowing authenticated administrators to upload .phar PHP files. Attackers can upload a GIF magic-byte polyglot webshell bypassing binary inspection and execute arbitrary OS commands as the web-server user.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	High
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.1

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	givanz
Product	Vvveb
Versions	Default: unaffected affected from 0 to 1.0.9.0 (excl.) Version 1.0.9.0 is unaffected

CVE-2026-126380 PUBLISHED

Vvveb before 1.0.9.0 RCE via .phar Extension Denylist Bypass in Media Upload

Metrics

Product Status

Credits

References

Problem Types