CVE-2026-70561TestLink 1.9.20 and prior Authenticated IDOR via attachmentdownload.php
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-639
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TestLinkOpenSourceTRMS TestLink testlinkopensourcetrms:testlink (from the name) | through 1.9.20 | CNA record |
References
- https://github.com/geo-chen/oss/blob/main/testlink-code.mdtechnical-description
- https://github.com/TestLinkOpenSourceTRMS/testlink-codeproduct
- https://www.vulncheck.com/advisories/testlink-and-prior-authenticated-idor-via-attachmentdownload-phpthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.