XSS in Yzmcms

CVE-2020-23369

In YzmCMS 5.6, XSS was discovered in member/member_content/init.html via the SRC attribute of an IFRAME element because of using UEditor 1.4.3.3.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (55.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Yzmcms — versions 5.6
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-23369?: CVE-2020-23369 is a medium-severity vulnerability in Yzmcms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-05-10.
How severe is CVE-2020-23369?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-23369 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.