CVE-2026-77877 json
Control Web Panel (CWP) < 1.29 Unauthenticated Loopback API Root Access
published 2026-11-02 6 d ago modified 2026-11-03 5 d ago also EUVD-2026-115244
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 5%
- public exploits
- 0
- none known
Summary
Control Web Panel (CWP) before webpanel_version 1.29 contains a missing authentication vulnerability that allows attackers able to reach the loopback API service to invoke root-privileged API routes without presenting an access token. Attackers can access endpoints such as /v1/restoredatabase/, /generaluser/, /last_access/, /valid_user/, /valid_token/, and /user_panel_dashboard/ to perform unauthorized actions with root privileges.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 6 d ago
Exploit prediction
0.17% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- vulncheck.com https://www.vulncheck.com/blog/control-web-panel-pre-auth-module-dispatch-rce referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.5 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.5 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Control Web Panel Control Web Panel
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
control-webpanel.com
/changelog
release-notes, patch
-
vulncheck.com
/blog/control-web-panel-pre-auth-module-dispatch-rce
technical-description, exploit
-
vulncheck.com
/advisories/control-web-panel-cwp-unauthenticated-loopback-api-root-access
third-party-advisory
Sources
- CVE List CVE-2026-77877
- NVD CVE-2026-77877
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