CVE-2024-2831
Calendar <= 1.3.14 - Authenticated (Contributor+) SQL Injection via Shortcode
The Calendar plugin for WordPress is vulnerable to SQL Injection via the plugin's shortcodes in all versions up to, and including, 1.3.14 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor access or higher, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Calendar <= 1.3.14 - Authenticated (Contributor+) SQL Injection via Shortcode
The Calendar plugin for WordPress is vulnerable to SQL Injection via the plugin's shortcodes in all versions up to, and including, 1.3.14 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor access or higher, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
- Record
CVE-2024-2831- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-89
- Updated
- 2026-11-02
EUVDEUVD-2024-27775
The Calendar plugin for WordPress is vulnerable to SQL Injection via the plugin's shortcodes in all versions up to, and including, 1.3.14 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor access or higher, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
- Record
EUVD-2024-27775- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jg27-rj38-rjwm
The Calendar plugin for WordPress is vulnerable to SQL Injection via the plugin's shortcodes in...
The Calendar plugin for WordPress is vulnerable to SQL Injection via the plugin's shortcodes in all versions up to, and including, 1.3.14 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor access or higher, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
- Record
GHSA-jg27-rj38-rjwm- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-89
- Updated
- 2026-11-02
NVD
The Calendar plugin for WordPress is vulnerable to SQL Injection via the plugin's shortcodes in all versions up to, and including, 1.3.14 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with contributor access or higher, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
- Record
CVE-2024-2831- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-89
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-2831 is a high vulnerability (CVSS 8.8) in Humhub Calendar, published May 2, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.61%, the 49th percentile. No source names a fixed version.
References
wordfence.com/threat-intel/vulnerabilities/id/0886fa16-4292-4223-af01-9aa1f36490f7?source=cve
wordpress.org/plugins/calendar
plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3095719%40calendar&new=3095719%40calendar&sfp_email=&sfph_mail=
nvd.nist.gov/vuln/detail/CVE-2024-2831
github.com/advisories/GHSA-jg27-rj38-rjwm