CVE-2021-38556 in the critical feed json
Command Injection in RaspAP 2.6.6
published 2021-08-24 5 y ago modified 2026-09-10 1 mo ago also GHSA-7vph-p634-vrqf , EUVD-2021-2009
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 13.0%
- EPSS 13.0% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
includes/configure_client.php in RaspAP 2.6.6 allows attackers to execute commands via command injection.
Exploit prediction
13.04% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- zerosecuritypenetrationtesting.com https://zerosecuritypenetrationtesting.com/?page_id=306 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | billz/raspap-webgui | <=2.6.6 |
no fix listed |
Classification
- Weakness
-
- CWE-77 Improper Neutralization of Special Elements used in a Command
References
-
zerosecuritypenetrationtesting.com
/?page_id=306
web, exploit, third-party-advisory, vdb-entry, url-repurposed
-
github.com
/RaspAP/raspap-webgui
package, product
-
github.com
/RaspAP/raspap-webgui/blob/0e1d652c5e55f812aaf2a5908884e9db179416ee/includes/configure_client.php
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-38556
advisory
Sources
- CVE List CVE-2021-38556
- GitHub Advisory GHSA-7vph-p634-vrqf
- NVD CVE-2021-38556
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.