CVE-2021-42338
9.8
CRITICAL · CVSS 3.1 · EPSS 5.8% (pctl 93)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
4MOSAn GCB Doctor’s login page has improper validation of Cookie, which allows an unauthenticated remote attacker to bypass authentication by code injection in cookie, and arbitrarily manipulate the system or interrupt services by upload and execution of arbitrary files.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 5.81% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-285 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-11-19 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| 4mosan | gcb doctor |
References
→ the Explorer · watch your stack · NVD