XSS in Concretecms Concrete Cms

CVE-2023-28819

Concrete CMS (previously concrete5) versions 8.5.12 and below, 9.0.0 through 9.0.2 is vulnerable to Stored XSS in uploaded file and folder names.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (47.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-28819?
CVE-2023-28819 is a low-severity vulnerability in Concretecms Concrete Cms, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2023-04-28.
How severe is CVE-2023-28819?
Low severity. CVSS v3 base score is 3.5 out of 10.
Is CVE-2023-28819 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.