7.6highHigh
CVE-2026-38822
In openNDS before 11.0.0, the client_params.sh script, invoked by the openNDS daemon to serve the authenticated client status page, is vulnerable to OS command injection through crafted HTTP GET query parameter keys. An authenticated captive portal user can inject arbitrary shell commands by embedding semicolons in a URL query parameter name.
What the metrics mean
- It is reachable only from the same local or logical network.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, an ordinary user account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.6 (v3.1)
- Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L- Weakness
- CWE-78
- Assigned by
- cve@mitre.org
Dates
- Published
- 2026-08-28
- Last modified
- 2026-09-09
- Sources
- NVD