TI-2026-57899 Aliases CVE-2026-84204 GHSA-vphg-3vmw-2vv6

GROWI through 8.0.2 Missing Authorization on apiv3 Attachment Retrieval

LOW 31CWE-862Published 2026-09-01 · Updated 2026-09-01

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

GROWI contains an access control vulnerability in the GET /_api/v3/attachment/:id endpoint that fails to validate page access permissions. Authenticated attackers can retrieve attachment metadata from pages they cannot view by supplying known attachment identifiers.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00415 36th 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
growilabs	growi	up to 8.0.2	—	No fix listed	CNA

growi Vendorgrowilabs Affected up to 8.0.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-84204
2026-10-03 Alias added: GHSA-vphg-3vmw-2vv6

References

Patch 2

Other 2

TI-2026-57900 GROWI through 8.0.2 Authorization Bypass Through User-Controlled Key on apiv3 Revision Retrieval CVSS 4.0HIGH 7.1

Sources

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