CVE-2021-24671
MX Time Zone Clocks < 3.4.1 - Contributor+ Cross-Site Scripting
The MX Time Zone Clocks WordPress plugin before 3.4.1 does not escape the time_zone attribute of the mxmtzc_time_zone_clocks shortcode, allowing users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The MX Time Zone Clocks WordPress plugin before 3.4.1 does not escape the time_zone attribute of the mxmtzc_time_zone_clocks shortcode, allowing users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks
- Record
CVE-2021-24671- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/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
MX Time Zone Clocks < 3.4.1 - Contributor+ Cross-Site Scripting
The MX Time Zone Clocks WordPress plugin before 3.4.1 does not escape the time_zone attribute of the mxmtzc_time_zone_clocks shortcode, allowing users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks
- Record
CVE-2021-24671- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11583 No score
The MX Time Zone Clocks WordPress plugin before 3.4.1 does not escape the time_zone attribute of the mxmtzc_time_zone_clocks shortcode, allowing users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks
- Record
EUVD-2021-11583- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9g22-9q66-j2qp No score
The MX Time Zone Clocks WordPress plugin before 3.4.1 does not escape the time_zone attribute of...
The MX Time Zone Clocks WordPress plugin before 3.4.1 does not escape the time_zone attribute of the mxmtzc_time_zone_clocks shortcode, allowing users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks
- Record
GHSA-9g22-9q66-j2qp- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24671 is a medium vulnerability (CVSS 5.4) in Maksym Marko Mx Time Zone Clocks, published September 27, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 50th percentile. No source names a fixed version.