CVE-2021-42645
10.0
CRITICAL · CVSS 3.1 · EPSS 4.8% (pctl 92)
In your normal cycle
Critical by CVSS (10), but no sign of active exploitation.
Description
CMSimple_XH 1.7.4 is affected by a remote code execution (RCE) vulnerability. To exploit this vulnerability, an attacker must use the "File" parameter to upload a PHP payload to get a reverse shell from the vulnerable host.
Scoring
| CVSS | 10.0 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 4.83% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-434 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2022-05-10 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| cmsimple-xh | cmsimple xh |
References
→ the Explorer · watch your stack · NVD