CVE-2026-39918 漏洞深度分析

漏洞概述

CVE 编号: CVE-2026-39918
CVSS 评分: 9.2(CRITICAL)
CVSS 向量: 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
CWE 分类: CWE-94
漏洞状态: Deferred
发布时间: 2026-04-20T16:16:45.243
最后更新: 2026-07-14T21:16:47.110

漏洞描述

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.

影响分析

此漏洞的具体影响取决于实际利用场景。"

修复建议

  1. 及时关注厂商发布的安全更新和补丁
  2. 升级受影响组件到最新版本
  3. 如无法立即升级,参考厂商提供的临时缓解措施
  4. 加强网络访问控制和监控

参考链接

  1. https://github.com/givanz/Vvveb/commit/5162c1639130bd080ab63c7d856788cd59d6b3b7
  2. https://github.com/givanz/Vvveb/releases/tag/1.0.8.1
  3. https://www.vulncheck.com/advisories/vvveb-code-injection-via-installation-endpoint