CVE-2020-12707 — MEDIUM (6.1)

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Lepton-Cms	Lepton Cms	4.5.0

Related Weaknesses (CWE)

CWE-79

References

https://gitlab.com/lepton-cms/LEPTON/-/commit/52215f708395a329c9e17ea33bfc6762d4PatchThird Party Advisory
https://gitlab.com/lepton-cms/LEPTON/-/commit/52215f708395a329c9e17ea33bfc6762d4PatchThird Party Advisory

FAQ

What is CVE-2020-12707?

CVE-2020-12707 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 ac...

How severe is CVE-2020-12707?

CVE-2020-12707 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-12707?

Check the references section above for vendor advisories and patch information. Affected products include: Lepton-Cms Lepton Cms.