CVE-2020-12707 EXPLOIT
6.1
MEDIUM · CVSS 3.1 · EPSS 1.2% (pctl 68)
Patch early
A public exploit exists.
Description
An XSS vulnerability exists in modules/wysiwyg/save.php of LeptonCMS 4.5.0. This can be exploited because the only security measure used against XSS is the stripping of SCRIPT elements. A malicious actor can use HTML event handlers to run JavaScript instead of using SCRIPT elements.
Scoring
| CVSS | 6.1 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| EPSS | 1.23% — more likely to be exploited than 68% of all CVEs |
| Weakness | CWE-79 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2020-05-07 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| lepton-cms | lepton cms |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | LeptonCMS 4.5.0 - Persistent Cross-Site Scripting | 2020-03-25 |
References
→ the Explorer · watch your stack · NVD