CVE-2026-1556 PUBLISHED

Information disclosure via file URI overwrite in File (Field) Paths

Assigner: drupal
Reserved: 28.01.2026 Published: 26.03.2026 Updated: 26.03.2026

Information disclosure in the file URI processing of File (Field) Paths in Drupal File (Field) Paths 7.x prior to 7.1.3 on Drupal 7.x allows authenticated users to disclose other users’ private files via filename‑collision uploads. This can cause hook_node_insert() consumers (for example, email attachment modules) to receive the wrong file URI, bypassing normal access controls on private files.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Drupal
Product	Drupal File (Field) Paths
Versions	Default: unaffected affected from 7.x-1.0 to 7.x-1.3 (excl.)

Credits

Michael Hess (mlhess) finder

References

Problem Types

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor CWE

Impacts

CAPEC-17 Using Malicious Files