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CVE-2026-78237— Insufficient input validation in Admin By Request (ABR)

Quick assessment

Affected
Admin By Request (ABR) Admin By Request (ABR)
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.

ABR 中存在输入验证不足的问题，允许低权限用户向 sudoers 文件注入恶意条目，从而获得持久的 root 访问权限，且在 ABR 会话结束后仍然有效。

CVSS 7.8 · High EPSS 0.13% · P3

Affected Version Matrix 1

VendorProduct Version RangeStatus
Admin By Request (ABR) Admin By Request (ABR) 5.2.2 and below affected
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I. Basic Information for CVE-2026-78237

Vulnerability Information
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Vulnerability Title
Insufficient input validation in Admin By Request (ABR)
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient input validation in ABR allows a low-privileged user to inject malicious entries into the sudoers file, resulting in persistent root access that remained effective after the ABR session ended.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Admin By Request (ABR) Admin By Request (ABR) 5.2.2 and below -

II. Public POCs for CVE-2026-78237

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III. Intelligence Information for CVE-2026-78237

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Other References for CVE-2026-78237 (2)

IV. Related Vulnerabilities

Same product: Admin By Request (ABR)
Same vendor: Admin By Request (ABR)

V. Comments for CVE-2026-78237

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