CVE-2026-31281 | Totara LMS up to 19.1.5 cross site scripting

VDB-357170 · CVE-2026-31281 · EUVD-2026-21928 TOTARA LMS UP TO 19.1.5 CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.5 $0-$5k 1.50+ Summaryinfo A vulnerability, which was classified as problematic, was found in Totara LMS up to 19.1.5. Affected by this vulnerability is an unknown functionality. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2026-31281. It is possible to launch the attack remotely. No exploit is available. Detailsinfo A vulnerability was found in Totara LMS up to 19.1.5 and classified as problematic. Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. Impacted is integrity. CVE summarizes: Totara LMS v19.1.5 and before is vulnerable to HTLM Injection. An attacker can inject malicious HTLM code in a message and send it to all the users in the application, resulting in executing the code and may lead to session hijacking and executing commands on the victim's browser. This vulnerability is handled as CVE-2026-31281 since 03/09/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-21928). Productinfo Vendor Totara Name LMS Version 19.1.0 19.1.1 19.1.2 19.1.3 19.1.4 19.1.5 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.5 VulDB Meta Temp Score: 3.5 VulDB Base Score: 3.5 VulDB Temp Score: 3.5 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: Cross site scripting CWE: CWE-80 / CWE-74 / CWE-707 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/09/2026 CVE reserved 04/13/2026 +34 days Advisory disclosed 04/13/2026 +0 days VulDB entry created 04/13/2026 +0 days VulDB entry last update Sourcesinfo Status: Not defined CVE: CVE-2026-31281 (🔒) GCVE (CVE): GCVE-0-2026-31281 GCVE (VulDB): GCVE-100-357170 EUVD: 🔒 Entryinfo Created: 04/13/2026 17:28 Updated: 04/13/2026 17:58 Changes: 04/13/2026 17:28 (51), 04/13/2026 17:58 (1) Complete: 🔍 Cache ID: 99:576:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸