Vulnerability Details : CVE-2020-12707
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2020-12707
- cpe:2.3:a:lepton-cms:lepton_cms:4.5.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-12707
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-12707
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2020-12707
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-12707
-
https://gitlab.com/lepton-cms/LEPTON/-/commit/52215f708395a329c9e17ea33bfc6762d4efccbb
add cases to lepton_request for security and use new cases in wysiwyg (52215f70) · Commits · LEPTON Project / LEPTON · GitLabPatch;Third Party Advisory
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