Osticket
CVE-2019-11537
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 4.62%. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
In osTicket before 1.12, XSS exists via /upload/file.php, /upload/scp/users.php?do=import-users, and /upload/scp/ajax.php/users/import if an agent manager user uploads a crafted .csv file to the User. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. In osTicket before 1.12, XSS exists via /upload/file.php, /upload/scp/users.php?do=import-users, and /upload/scp/ajax.php/users/import if an agent manager user uploads a crafted .csv file to the User Importer, because file contents can appear in an error message. The XSS can lead to local file inclusion. Affected products include: Enhancesoft Osticket. Version information: before 1.12.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
In osTicket before 1.12, XSS exists via /upload/file.php, /upload/scp/users.php?do=import-users, and /upload/scp/ajax.php/users/import if an agent manager user uploads a crafted .csv file to the User Importer, because file contents can appear in an error message. The XSS can lead to local file inclusion.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Exploit-DB
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)NVD
SSRF exists in osTicket before 1.14.3, where an attacker can add malicious file to server or perform port scanning. Rate
osTicket 1.10.1 provides a functionality to upload 'html' files with associated formats. Rated critical severity (CVSS 9
Arbitrary local file read in Enhancesoft osTicket 1.18.x (before 1.18.3) and 1.17.x (before 1.17.7) lets a remote unauth
An issue was discovered in osTicket before 1.10.7 and 1.12.x before 1.12.1. Rated high severity (CVSS 8.8), this vulnera
In osTicket before 1.10.1, SQL injection is possible by constructing an array via use of square brackets at the end of a
An issue was discovered in osTicket before 1.10.7 and 1.12.x before 1.12.1. Rated medium severity (CVSS 6.1), this vulne
Enhancesoft osTicket before 1.10.2 allows remote attackers to reset arbitrary passwords (when an associated e-mail addre
A denial of service attack might be launched against the server if an unusually lengthy password (more than 10000000 cha
A SQL injection vulnerability in the "Search" functionality of "tickets.php" page in osTicket 1.15.x allows authenticate
Cross-site scripting (XSS) vulnerability in /scp/index.php in Enhancesoft osTicket before 1.10.2 allows remote attackers
Cross-site scripting (XSS) vulnerability in /scp/directory.php in Enhancesoft osTicket before 1.10.2 allows remote attac
A SQL injection vulnerability in the "Search" functionality of "tickets.php" page in osTicket <=1.17.5 allows authentica