What is CVE-2020-29240?

CVE-2020-29240 is a medium-severity vulnerability in Lepton-cms Leptoncms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-12-02.

How severe is CVE-2020-29240?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2020-29240 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Lepton-cms Leptoncms

CVE-2020-29240

Lepton-CMS 4.7.0 is affected by cross-site scripting (XSS). An attacker can inject the XSS payload in the URL field of the admin page and each time an admin visits the Menu-Pages-Pages Overview section, the XSS will be triggered.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.017 (73.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Lepton-cms Leptoncms — versions 4.7.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-29240?: CVE-2020-29240 is a medium-severity vulnerability in Lepton-cms Leptoncms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-12-02.
How severe is CVE-2020-29240?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2020-29240 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.