CVE-2023-1315
Published: 10 March 2023
Summary
CVE-2023-1315 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Enhancesoft Osticket. Its CVSS base score is 5.4 (Medium).
Operationally, ranked in the top 6.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2023-1315 is a reflected cross-site scripting vulnerability (CWE-79) affecting the osTicket GitHub repository prior to version 1.16.6. The flaw carries a CVSS 3.1 score of 5.4 and permits an attacker to inject malicious scripts that execute in the context of another user’s session.
An authenticated user with low privileges can exploit the issue by crafting a reflected XSS payload that requires victim interaction, such as clicking a malicious link. Successful exploitation allows limited reading and modification of data within the affected application while changing scope to impact other users.
The referenced commits in the osTicket repository (ec6043935b4e30b5c0dfa544e256717182808a2e) and the associated huntr.dev bounty report document the fix that was merged to resolve the reflected XSS vector; administrators should apply the patch or upgrade to v1.16.6 or later.
EPSS for this CVE rose from lower values to a peak of 0.3935 on 2026-02-03 before receding to the current score of 0.1008, indicating a period of increased exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-23573
Vulnerability details
Cross-site Scripting (XSS) - Reflected in GitHub repository osticket/osticket prior to v1.16.6.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.