The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to generic SQL Injection via the 'alldata[truebooker_user]' parameter in all versions up to, and including, 1.2.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The check_ajax_referer() nonce guard does not constitute an authentication or authorization barrier because the nonce is exposed to unauthenticated visitors on TrueBooker front-end booking pages; exploitation additionally requires that the required booking fields (category, service, person, date, and time slot) be present in the alldata POST parameter so that execution reaches the vulnerable SQL query branch.
TrueBooker <= 1.2.2 - Unauthenticated SQL Injection
Problem type
Affected products
themetechmount
<= 1.2.2 - AFFECTED
References
https://www.wordfence.com/threat-intel/vulnerabilities/id/9b0e973b-f0bf-44d1-b964-e259f68291aa?source=cve
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14866
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14866
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14741
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14756
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14741
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14756
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3591506%40truebooker-appointment-booking%2Ftrunk%2Fmain%2Ffunction_ajax.php&old=3581699%40truebooker-appointment-booking%2Ftrunk%2Fmain%2Ffunction_ajax.php&sfp_email=&sfph_mail=
GitHub Security Advisories
GHSA-xm72-j57q-p3m6
The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to...
https://github.com/advisories/GHSA-xm72-j57q-p3m6The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to generic SQL Injection via the 'alldata[truebooker_user]' parameter in all versions up to, and including, 1.2.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The check_ajax_referer() nonce guard does not constitute an authentication or authorization barrier because the nonce is exposed to unauthenticated visitors on TrueBooker front-end booking pages; exploitation additionally requires that the required booking fields (category, service, person, date, and time slot) be present in the alldata POST parameter so that execution reaches the vulnerable SQL query branch.
https://nvd.nist.gov/vuln/detail/CVE-2026-13161
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14741
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14756
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14866
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14741
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14756
https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14866
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3591506%40truebooker-appointment-booking%2Ftrunk%2Fmain%2Ffunction_ajax.php&old=3581699%40truebooker-appointment-booking%2Ftrunk%2Fmain%2Ffunction_ajax.php&sfp_email=&sfph_mail=
https://www.wordfence.com/threat-intel/vulnerabilities/id/9b0e973b-f0bf-44d1-b964-e259f68291aa?source=cve
https://github.com/advisories/GHSA-xm72-j57q-p3m6
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-13161Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-13161",
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"dateUpdated": "2026-07-28T08:34:36.428Z",
"dateReserved": "2026-06-24T12:17:38.257Z",
"datePublished": "2026-07-28T08:34:36.428Z",
"state": "PUBLISHED"
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"containers": {
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"shortName": "Wordfence",
"dateUpdated": "2026-07-28T08:34:36.428Z"
},
"title": "TrueBooker <= 1.2.2 - Unauthenticated SQL Injection",
"descriptions": [
{
"lang": "en",
"value": "The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to generic SQL Injection via the 'alldata[truebooker_user]' parameter in all versions up to, and including, 1.2.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The check_ajax_referer() nonce guard does not constitute an authentication or authorization barrier because the nonce is exposed to unauthenticated visitors on TrueBooker front-end booking pages; exploitation additionally requires that the required booking fields (category, service, person, date, and time slot) be present in the alldata POST parameter so that execution reaches the vulnerable SQL query branch."
}
],
"affected": [
{
"vendor": "themetechmount",
"product": "TrueBooker – Appointment Booking and Scheduler System",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"status": "affected",
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"problemTypes": [
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"descriptions": [
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"description": "CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')",
"cweId": "CWE-89",
"type": "CWE"
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"references": [
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"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9b0e973b-f0bf-44d1-b964-e259f68291aa?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.0/main/function_ajax.php#L14866"
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{
"url": "https://plugins.trac.wordpress.org/browser/truebooker-appointment-booking/tags/1.2.2/main/function_ajax.php#L14866"
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{
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"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3591506%40truebooker-appointment-booking%2Ftrunk%2Fmain%2Ffunction_ajax.php&old=3581699%40truebooker-appointment-booking%2Ftrunk%2Fmain%2Ffunction_ajax.php&sfp_email=&sfph_mail="
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"baseScore": 7.5,
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}
],
"timeline": [
{
"time": "2026-07-02T05:24:19.000Z",
"lang": "en",
"value": "Vendor Notified"
},
{
"time": "2026-07-27T20:17:19.000Z",
"lang": "en",
"value": "Disclosed"
}
],
"credits": [
{
"lang": "en",
"value": "Karan J",
"type": "finder"
}
]
}
}
}