Read the docs
TI-2021-22768 Aliases CVE-2021-48017GHSA-pvhv-hmm4-4xwh

Path traversal in OrbiTeam BSCW Server exposes local files

Priority HIGH 77CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

OrbiTeam BSCW Server 5.x before 5.2.5 and 7.x before 7.4.4 contains a path traversal flaw (CWE-22) in the style_name parameter of the theme operation. An unauthenticated remote attacker can manipulate this parameter to read local files such as /etc/passwd. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00428 37th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA
Fix Fixed BSCW Server (OrbiTeam): 5.2.5, 7.4.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OrbiTeamBSCW Server5.0.0 to before 5.2.5; 7.0.0 to before 7.4.45.2.5, 7.4.4Patch availableCNA
  • BSCW Server VendorOrbiTeam Affected 5.0.0 to before 5.2.5; 7.0.0 to before 7.4.4 Fixed in 5.2.5, 7.4.4 Patch available CNA

Remediation

Upgrade OrbiTeam BSCW Server 5.x to version 5.2.5 and OrbiTeam BSCW Server 7.x to version 7.4.4.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA BSCW Server (OrbiTeam) Fixed in 5.2.5, 7.4.4

Timeline

  1. 2026-10-22 Threatist record created from CVE-2021-48017
  2. 2026-10-22 Alias added: GHSA-pvhv-hmm4-4xwh
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-10-29 CISA SSVC decision points changed
  5. 2026-10-29 Priority changed: LOW → HIGH

References

Exploit 2

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences