Vulnerability in Aapanel
CVE-2021-37840
aaPanel through 6.8.12 allows Cross-Site WebSocket Hijacking (CSWH) involving OS commands within WebSocket messages at a ws:// URL for /webssh (the victim must have configured Terminal with at least one host). Successful exploitation depends on the browser used by a potential victim (e.g., exploitation can occur with Firefox but not Chrome).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (75.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
Public proof-of-concept exploits
References
- github.com/aaPanel/aaPanel/issues/74 (Exploit, Third Party Advisory)
- ssd-disclosure.com/ssd-advisory-aapanel-cswh-to-rce/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-37840?
- CVE-2021-37840 is a high-severity vulnerability in Aapanel. CVSS score: 8.8/10. Published 2021-08-02.
- How severe is CVE-2021-37840?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-37840 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.