TI-2026-49921 Aliases CVE-2026-71251 GHSA-h26w-wq3x-9p76

Akaunting - Cross-Company Media IDOR in Customer Portal Download Endpoint

LOW 29CWE-639Published 2026-08-05 · Updated 2026-08-10

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Akaunting's shared download route (app/Http/Controllers/Common/Uploads.php::download, reachable at uploads/{id}/download behind only generic auth middleware) fetched the requested Media record by ID with no verification that it belonged to the requesting portal customer's own company, allowing any authenticated portal customer to download any other company's uploaded files by guessing or enumerating media IDs.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0034 27th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Akaunting	akaunting	all versions	—	No fix listed	CNA

akaunting VendorAkaunting Affected all versions Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:akaunting:akaunting::::::::	—	—	Akaunting

cpe:2.3:a:akaunting:akaunting:*:*:*:*:*:*:*:* Versions — — ·Akaunting

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-71251
2026-10-03 Alias added: GHSA-h26w-wq3x-9p76

References

Advisory 1

https://github.com/akaunting/akaunting

TI-2024-15147 An OS command injection vulnerability exists in Akaunting v3.1.3 and earlier. CVSS 3.1CRITICAL 9.8
TI-2026-15675 Akaunting 3.1.21 - Improper authorization in BulkActions handle dispatch CVSS 4.0HIGH 8.7
TI-2024-38390 Akaunting 3.1.8 Server-Side Template Injection via Multiple Form Fields CVSS 4.0HIGH 8.6
TI-2026-13961 Improper privilege management in Akaunting CVSS 3.1HIGH 8.1
TI-2025-35028 Cross-site scripting (XSS) vulnerability in the component /common/reports of Akaunting… CVSS 3.1MEDIUM 6.5
TI-2025-35027 An issue in the component /settings/localisation of Akaunting v3.1.18 allows… CVSS 3.1MEDIUM 6.5

See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences