Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
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, exploitation aligns with the MITRE ATT&CK technique Protocol or Service Impersonation (T1001.003); ranked in the top 36% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
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.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-23573
Vulnerability Data
Cross-site Scripting (XSS) - Reflected in GitHub repository osticket/osticket prior to v1.16.6.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.1.2V1.3.2
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.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly target introduction of XSS via coding standards/testing (mostly), yet the single broad outcome leaves many specific neutralization vectors unaddressed (partial).
Patching and EOL replacement can remediate known XSS instances in libraries or frameworks (partial) but do nothing to enforce input neutralization in application code (none).
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
A.5.6 only promotes membership in groups to improve knowledge, receive alerts, and share information; it performs no action that stops XSS exploitation (or even the underlying neutralization defect) and is a pure dependency for other controls per the owner's labeling rule.