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CVE

CVE-2026-39918

Vvveb < 1.0.8.1 Code Injection via Installation Endpoint
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CVE

CVE-2026-39918

Vvveb < 1.0.8.1 Code Injection via Installation Endpoint

Vvveb prior to 1.0.8.1 contains a code injection vulnerability in the installation endpoint where the subdir POST parameter is written unsanitized into the env.php configuration file without escaping or validation. Attackers can inject arbitrary PHP code by breaking out of the string context in the define statement to achieve unauthenticated remote code execution as the web server user.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.2
-
4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39918.json, https://github.com/givanz/Vvveb/releases/tag/1.0.8.1, https://nvd.nist.gov/vuln/detail/CVE-2026-39918, https://www.vulncheck.com/advisories/vvveb-code-injection-via-installation-endpoint, https://github.com/givanz/Vvveb/commit/5162c1639130bd080ab63c7d856788cd59d6b3b7, https://github.com/givanz/Vvveb

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.00665%
EPSS Percentile
0.49102%
Introduced Version
0
Fix Available
184ca3976f3b110b9b1942eddf4b5f3124fdcba1

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