High severity · published Oct 22, 2026
CVE-2021-48017
OrbiTeam BSCW Server < 5.2.5 / 7.4.4 Path Traversal via bscw.cgi
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BS
BSCW Server · OrbiTeam
5.0.0 before 5.2.5; 7.0.0 before 7.4.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-48017
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-48017
github.com
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/orbiteam-bscw-server-lfi.yaml
packetstorm.news
https://packetstorm.news/files/id/165156/
web.archive.org
https://web.archive.org/web/20260421125237/https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-bscw-server/
www.vulncheck.com
https://www.vulncheck.com/advisories/orbiteam-bscw-server-5.2.5-7.4.4-path-traversal-via-bscw-cgi