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.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-10-22

Modified

2026-10-22

Record from

the NVD, synced 2026-10-23

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

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