XSS in Concretecms Concrete Cms
CVE-2021-3111
The Express Entries Dashboard in Concrete5 8.5.4 allows stored XSS via the name field of a new data object at an index.php/dashboard/express/entries/view/ URI.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.030 (86.0th 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
- Concretecms Concrete_cms
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-3111?
- CVE-2021-3111 is a medium-severity vulnerability in Concretecms Concrete Cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-01-08.
- How severe is CVE-2021-3111?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2021-3111 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.