CVE-2021-3111
The Express Entries Dashboard in Concrete5 8.5.4 allows stored XSS via the name field of a new...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-3111- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-3111- Updated
- 2026-11-02
EUVDEUVD-2021-26463 No score
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.
- Record
EUVD-2021-26463- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hwh7-pqc2-733j No score
The Express Entries Dashboard in Concrete5 8.5.4 allows stored XSS via the name field of a new...
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.
- Record
GHSA-hwh7-pqc2-733j- Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-3111- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Concrete5 8.5.4 - 'name' Stored XSS | 2021-03-29 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-3111 is a medium vulnerability (CVSS 4.8) in Concretecms Concrete Cms, published January 8, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.04%, the 87th percentile. No source names a fixed version.
References
documentation.concrete5.org/developers/introduction/version-history
github.com/Quadron-Research-Lab/CVE/blob/main/CVE-2021-3111.pdf
packetstormsecurity.com/files/161600/Concrete5-8.5.4-Cross-Site-Scripting.html
nvd.nist.gov/vuln/detail/CVE-2021-3111