CVE-2026-70561
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
A vulnerability in TestLink 1.9.20 and earlier is an insecure direct object reference (IDOR) that allows any authenticated user, including guest accounts, to read arbitrary attachments by supplying an integer attachment ID to the attachmentdownload.php handler without project or role authorization checks. Attackers can enumerate sequential IDs to retrieve files from private projects.
Risk Assessment
The risk is exposure of sensitive data such as test specifications, requirements documents, or execution evidence, bypassing per-project access control.
Recommendation
Upgrade TestLink to the latest version and implement project-level access controls for attachment downloads.
Original NVD description (English source)
TestLink 1.9.20 and prior contains an insecure direct object reference vulnerability that allows any authenticated user, including low-privilege guest accounts, to read arbitrary attachments by supplying an integer attachment ID to the attachmentdownload.php handler without any project or role authorization check. Attackers can enumerate sequential integer IDs through the attachment download endpoint to retrieve file contents from private projects they have no membership in, bypassing the per-project access control model and exposing test specifications, requirements documents, execution evidence, and other sensitive uploaded files across the entire installation.