Path Traversal in B2evolution
CVE-2017-5539
The patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ..\/ to bypass the filter rule. Then, this attacker can exploit this vulnerability to delete or read any files on the server. It can also be used to determine whether a file exists.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.042 (89.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- B2evolution — versions 6.8.4
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-5539?
- CVE-2017-5539 is a critical-severity vulnerability in B2evolution, classified under Path Traversal. CVSS score: 9.1/10. Published 2017-01-23.
- How severe is CVE-2017-5539?
- Critical severity. CVSS v3 base score is 9.1 out of 10.