What is CVE-2021-28935?

CVE-2021-28935 is a medium-severity vulnerability in Cmsmadesimple Cms Made Simple, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-03-30.

How severe is CVE-2021-28935?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2021-28935 known to be exploited?

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

XSS in Cmsmadesimple Cms Made Simple

CVE-2021-28935

CMS Made Simple (CMSMS) 2.2.15 allows authenticated XSS via the /admin/addbookmark.php script through the Site Admin > My Preferences > Title field.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.016 (72.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Cmsmadesimple Cms_made_simple — versions 2.2.15
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, x_refsource_MISC, Issue Tracking, Vendor Advisory)
cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-28935?: CVE-2021-28935 is a medium-severity vulnerability in Cmsmadesimple Cms Made Simple, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-03-30.
How severe is CVE-2021-28935?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-28935 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.