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CVE-2026-111653— 53AIHub through 0.5.3 Missing Authentication via PUT /api/enterprises/:id

Quick assessment

Affected
53AI 53AIHub
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

53AIHub 0.5.3 及更早版本存在一个身份验证缺失漏洞，允许未认证的攻击者向 发送 PUT 请求，从而覆盖任意企业的配置文件。由于 仅在 为真时才执行权限检查，攻击者可以枚举连续的企业 ID，进而篡改企业的徽标、显示名称和品牌标识，用于网站篡改或网络钓鱼攻击。

CVSS 5.3 · Medium EPSS 0.35% · P28

Affected Version Matrix 1

VendorProduct Version RangeStatus
53AI 53AIHub ≤ 0.5.3 affected
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I. Basic Information for CVE-2026-111653

Vulnerability Information
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Vulnerability Title
53AIHub through 0.5.3 Missing Authentication via PUT /api/enterprises/:id
Source: CVE Program / CVE List V5
Vulnerability Description
53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT requests to /api/enterprises/:id. Because UpdateEnterprise only enforces checks when IS_SAAS is true, attackers can enumerate sequential enterprise IDs and overwrite logos, display names and branding for defacement and phishing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
53AI 53AIHub 0 ~ 0.5.3 -

II. Public POCs for CVE-2026-111653

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III. Intelligence Information for CVE-2026-111653

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Vendor Advisories for CVE-2026-111653 (1)

IV. Related Vulnerabilities

Same weakness: CWE-306

V. Comments for CVE-2026-111653

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