What’s Vulnerable › Vulnerabilities

CVE-2021-48017: OrbiTeam BSCW Server < 5.2.5 / 7.4.4 Path Traversal via bscw.cgi

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-22 · updated 2026-10-29
• Weakness: CWE-22

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.

Affected products

• OrbiTeam BSCW Server: from 5.0.0 before 5.2.5; from 7.0.0 before 7.4.4 — fixed in 5.2.5, 7.4.4

How to fix

Upgrade to a fixed version: OrbiTeam BSCW Server 5.2.5, 7.4.4. Check the vendor advisory for mitigations.

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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