CVE-2021-48017
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductBSCW Server
PublishedOct 22, 2026
First seenOct 22, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- OrbiTeam BSCW Server5.2.5, 7.4.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OrbiTeam BSCW Server | 5.0.0 ≤ v < 5.2.5, 7.0.0 ≤ v < 7.4.4 | 5.2.5, 7.4.4 |
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