CVE-2026-33714 | Chamilo LMS up to 1.x AJAX Endpoint statistics.ajax.php Security::remove_XSS date_start/date_end sql injection (GHSA-w8c4-c7r8-qgw2)

VDB-357583 · CVE-2026-33714 · GHSA-W8C4-C7R8-QGW2 CHAMILO LMS UP TO 1.X AJAX ENDPOINT STATISTICS.AJAX.PHP SECURITY::REMOVE_XSS DATE_START/DATE_END SQL INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.0 $0-$5k 1.70+ Summaryinfo A vulnerability identified as critical has been detected in Chamilo LMS up to 1.x. The affected element is the function Security::remove_XSS of the file public/main/inc/ajax/statistics.ajax.php of the component AJAX Endpoint. This manipulation of the argument date_start/date_end causes sql injection. This vulnerability appears as CVE-2026-33714. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component. Detailsinfo A vulnerability has been found in Chamilo LMS up to 1.x and classified as critical. Affected by this vulnerability is the function Security::remove_XSS of the file public/main/inc/ajax/statistics.ajax.php of the component AJAX Endpoint. The manipulation of the argument date_start/date_end with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: Chamilo is an open-source learning management system (LMS). Version 2.0.0-RC.2 contains a SQL Injection vulnerability in the statistics AJAX endpoint, which is an incomplete fix for CVE-2026-30881. While CVE-2026-30881 was patched by applying Security::remove_XSS() to the date_start and date_end parameters in the get_user_registration_by_month action, the same parameters remain unsanitized in the users_active action within the same file (public/main/inc/ajax/statistics.ajax.php), where they are directly interpolated into a SQL query. An authenticated admin can exploit this to perform time-based blind SQL injection, enabling extraction of arbitrary data from the database. This issue has been fixed in version 2.0.0. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-33714 since 03/23/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK. By approaching the search of inurl:public/main/inc/ajax/statistics.ajax.php it is possible to find vulnerable targets with Google Hacking. Upgrading to version 2.0.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Productinfo Type Content Management System Vendor Chamilo Name LMS Version 1.x License open-source CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.0 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Sql injection CWE: CWE-89 / CWE-74 / CWE-707 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Google Hack: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: LMS 2.0.0 Timelineinfo 03/23/2026 CVE reserved 04/14/2026 +21 days Advisory disclosed 04/14/2026 +0 days VulDB entry created 04/14/2026 +0 days VulDB entry last update Sourcesinfo Advisory: GHSA-w8c4-c7r8-qgw2 Status: Confirmed CVE: CVE-2026-33714 (🔒) GCVE (CVE): GCVE-0-2026-33714 GCVE (VulDB): GCVE-100-357583 Entryinfo Created: 04/14/2026 23:53 Changes: 04/14/2026 23:53 (73) Complete: 🔍 Cache ID: 99:5BA:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸