Path Traversal in Orbiteam Bscw Server
CVE-2021-48017
OrbiTeam BSCW Server 5.x before 5.2.5 and 7.x before 7.4.4 contains an unauthenticated path traversal vulnerability in the style_name parameter of the theme operation. Attackers can send GET requests to /pub/bscw.cgi/<id>?op=theme with ../ sequences in style_name to read local files such as /etc/passwd. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- web.archive.org/web/20260421125237/https://sec-consult.com/vulnerability-lab/ad… (exploit, third-party-advisory)
- packetstorm.news/files/id/165156/ (exploit)
- github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/oth… (technical-description)
- www.vulncheck.com/advisories/orbiteam-bscw-server-5.2.5-7.4.4-path-traversal-vi… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-48017?
- CVE-2021-48017 is a high-severity vulnerability in Orbiteam Bscw Server, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-10-22.
- How severe is CVE-2021-48017?
- High severity. CVSS v3 base score is 7.5 out of 10.