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CVE-2026-48975— HomeBox: Cross-Tenant IDOR in MaintenanceEntry Update and Delete Allows Tampering and Destruction of Any User's Maintenance History in Homebox

Quick assessment

Affected
sysadminsmedia homebox
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.

HomeBox is a home inventory and organization system. Prior to 0.26.0, MaintenanceEntryRepository.Update and MaintenanceEntryRepository.Delete in backend/internal/data/repo/repo_maintenance_entry.go use UpdateOneID(id) and DeleteOneID(id) without verifying that

CVSS 8.1 · High EPSS 0.26% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
sysadminsmedia homebox < 0.26.0 affected
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I. Basic Information for CVE-2026-48975

Vulnerability Information

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Vulnerability Title
HomeBox: Cross-Tenant IDOR in MaintenanceEntry Update and Delete Allows Tampering and Destruction of Any User's Maintenance History in Homebox
Source: CVE Program / CVE List V5
Vulnerability Description
HomeBox is a home inventory and organization system. Prior to 0.26.0, MaintenanceEntryRepository.Update and MaintenanceEntryRepository.Delete in backend/internal/data/repo/repo_maintenance_entry.go use UpdateOneID(id) and DeleteOneID(id) without verifying that the maintenance entry belongs to the authenticated user's active group. An authenticated low-privileged user who knows or enumerates another tenant's maintenance-entry UUID can overwrite that record or permanently delete it. This issue is fixed in version 0.26.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
sysadminsmedia homebox < 0.26.0 -

II. Public POCs for CVE-2026-48975

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III. Intelligence Information for CVE-2026-48975

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Other References for CVE-2026-48975 (2)

Same Patch Batch · sysadminsmedia · 2026-09-21 · 5 CVEs total

CVE-2026-48976 8.1 HIGH HomeBox: Cross-Tenant IDOR in Notifier Update Leaks Shoutrrr Credentials and Allows Webhoo
CVE-2026-48826 8.1 HIGH HomeBox: Cross-Group Inventory Wipe in Homebox via Global Owner Role and X-Tenant Header S
CVE-2026-55473 6.0 MEDIUM HomeBox: Notifier SSRF guard misses NAT64 prefixes (64:ff9b::/96, 64:ff9b:1::/48) — generi
CVE-2026-48974 5.4 MEDIUM HomeBox: Forced Group Membership Without Consent in Homebox AddMember Handler

IV. Related Vulnerabilities

Same product: homebox
Same vendor: sysadminsmedia
Same weakness: CWE-639

V. Comments for CVE-2026-48975

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