🟠 《高危安全漏洞：CVE-2026-58054》

CVSS 评分: 高危（8.6）　　状态: Received　　发布时间: 2026-06-28

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英文原文描述

MyBB 1.8.40 does not restrict which usergroup a limited Admin Control Panel user may assign when creating or editing users; the user module offers the Administrators group (gid 4) and its datahandler's verify_usergroup() unconditionally returns true. An admin holding only the delegated user-management permission can assign the Administrators group to an account and escalate to the full Administrator permission set.

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🔍 技术细节

字段	值
CVE ID	CVE-2026-58054
CVSS 评分	8.6 🟠
严重程度	高危
CVSS 向量	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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-269
发布时间	2026-06-28
最后更新	2026-06-28
状态	Received
数据来源	disclosure@vulncheck.com

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🔗 参考链接

• https://github.com/bikini/exploitarium/tree/main/mybb-limited-acp-to-admin

• https://www.vulncheck.com/advisories/mybb-privilege-escalation-from-limited-acp-user-management-to-administrator

• NVD 正式页面: https://nvd.nist.gov/vuln/detail/CVE-2026-58054

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🤖 本文由 CVE 安全快讯机器人自动生成
英文描述已由 AI 自动翻译为中文，仅供参考，请以原文为准
数据来源: NVD (National Vulnerability Database) | 获取时间: 2026-06-28 18:15