CVE-2021-24553
Timeline Calendar <= 1.2 - Authenticated (admin+) SQL Injection
The Timeline Calendar WordPress plugin through 1.2 does not sanitise, validate or escape the edit GET parameter before using it in a SQL statement when editing events, leading to an authenticated SQL injection issue. Other SQL Injections are also present in the plugin
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The Timeline Calendar WordPress plugin through 1.2 does not sanitise, validate or escape the edit GET parameter before using it in a SQL statement when editing events, leading to an authenticated SQL injection issue. Other SQL Injections are also present in the plugin
- Record
CVE-2021-24553- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-89
- Updated
- 2026-11-02
CVE List No score
Timeline Calendar <= 1.2 - Authenticated (admin+) SQL Injection
The Timeline Calendar WordPress plugin through 1.2 does not sanitise, validate or escape the edit GET parameter before using it in a SQL statement when editing events, leading to an authenticated SQL injection issue. Other SQL Injections are also present in the plugin
- Record
CVE-2021-24553- Weakness
- CWE-89
- Updated
- 2026-11-02
EUVDEUVD-2021-11465 No score
The Timeline Calendar WordPress plugin through 1.2 does not sanitise, validate or escape the edit GET parameter before using it in a SQL statement when editing events, leading to an authenticated SQL injection issue. Other SQL Injections are also present in the plugin
- Record
EUVD-2021-11465- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2qx4-67q8-fwg5 No score
The Timeline Calendar WordPress plugin through 1.2 does not sanitise, validate or escape the edit...
The Timeline Calendar WordPress plugin through 1.2 does not sanitise, validate or escape the edit GET parameter before using it in a SQL statement when editing events, leading to an authenticated SQL injection issue. Other SQL Injections are also present in the plugin
- Record
GHSA-2qx4-67q8-fwg5- Weakness
- CWE-89
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24553 is a high vulnerability (CVSS 7.2) in Timeline Calendar Project Calendar, published August 23, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.58%, the 75th percentile. No source names a fixed version.