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8.1
CVE-2017-5480: b2evolution allows authenticated users to read or delete any file
CVE-2017-5480 · published 9 years ago
Summary
The b2evolution content management system (versions up to 6.8.3) has a bug that lets someone who is logged into the back‑office trick the system into accessing files outside the intended folder. This could be used to view or remove sensitive files on the server. Apply the vendor's update or patch and restrict back‑office access to trusted personnel.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| b2evolution | b2evolution |
<= 6.8.3 cpe:2.3:a:b2evolution:b2evolution:*:*:*:*:*:*:*:* |
Original advisory text
Directory traversal vulnerability in inc/files/files.ctrl.php in b2evolution through 6.8.3 allows remote authenticated users to read or delete arbitrary files by leveraging back-office access to pr...
Directory traversal vulnerability in inc/files/files.ctrl.php in b2evolution through 6.8.3 allows remote authenticated users to read or delete arbitrary files by leveraging back-office access to provide a .. (dot dot) in the fm_selected array parameter.
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-22Path Traversal
Timeline
Published15 Jan 2017
Updated29 Oct 2026
First seen29 Sep 2026
Sources
CVE-2017-5480 · NVD
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