CVE-2018-16703
A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker...
A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker to perform multiple user enumerations, which can further help an attacker to perform login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side access control and login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Portal login page. An exploit could allow the attacker to identify existing users and perform brute-force password attacks on the Portal, as demonstrated by navigating to the user/4 URI.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
5.3
A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker to perform multiple user enumerations, which can further help an attacker to perform login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side access control and login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Portal login page. An exploit could allow the attacker to identify existing users and perform brute-force password attacks on the Portal, as demonstrated by navigating to the user/4 URI.
- Record
CVE-2018-16703- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-307, CWE-521, CWE-732
- Updated
- 2026-11-02
CVE List No score
A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker to perform multiple user enumerations, which can further help an attacker to perform login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side access control and login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Portal login page. An exploit could allow the attacker to identify existing users and perform brute-force password attacks on the Portal, as demonstrated by navigating to the user/4 URI.
- Record
CVE-2018-16703- Updated
- 2026-11-02
EUVDEUVD-2018-8505 No score
A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker to perform multiple user enumerations, which can further help an attacker to perform login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side access control and login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Portal login page. An exploit could allow the attacker to identify existing users and perform brute-force password attacks on the Portal, as demonstrated by navigating to the user/4 URI.
- Record
EUVD-2018-8505- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hj39-q7cj-vfhf
5.3
A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker...
A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker to perform multiple user enumerations, which can further help an attacker to perform login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side access control and login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Portal login page. An exploit could allow the attacker to identify existing users and perform brute-force password attacks on the Portal, as demonstrated by navigating to the user/4 URI.
- Record
GHSA-hj39-q7cj-vfhf- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-307
- Updated
- 2026-11-02
OSV
5.3
A vulnerability in the Gleez CMS 1.2.0 login page could allow an unauthenticated, remote attacker to perform multiple user enumerations, which can further help an attacker to perform login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side access control and login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Portal login page. An exploit could allow the attacker to identify existing users and perform brute-force password attacks on the Portal, as demonstrated by navigating to the user/4 URI.
- Record
CVE-2018-16703- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-07
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-16703 is a medium vulnerability (CVSS 5.3) in Gleeztech Gleez Cms, published September 7, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.53%, the 74th percentile. No source names a fixed version.