Path Traversal in Os4ed Opensis
CVE-2021-40651
OS4Ed OpenSIS Community 8.0 is vulnerable to a local file inclusion vulnerability in Modules.php (modname parameter), which can disclose arbitrary file from the server's filesystem as long as the application has access to the file.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.179 (96.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Os4ed Opensis — versions 8.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-40651?
- CVE-2021-40651 is a medium-severity vulnerability in Os4ed Opensis, classified under Path Traversal. CVSS score: 6.5/10. Published 2021-09-29.
- How severe is CVE-2021-40651?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-40651 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.