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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 4.0
- 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.43% probability · 37th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Source
- disclosure@vulncheck.com
EPSS moved from 0.4% on 23 October 2026 to 0.4% on 26 October 2026.
References
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/orbiteam-bscw-server-lfi.yaml
- https://packetstorm.news/files/id/165156/
- https://web.archive.org/web/20260421125237/https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-bscw-server/
- https://www.vulncheck.com/advisories/orbiteam-bscw-server-5.2.5-7.4.4-path-traversal-via-bscw-cgi
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.