CVE-2023-4111
XSS in Phpjabbers Bus Reservation System 1.1
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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-2023-4111 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Phpjabbers Bus Reservation System. Its CVSS base score is 4.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Protocol or Service Impersonation (T1001.003); ranked in the top 15% 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.
A cross-site scripting vulnerability exists in PHP Jabbers Bus Reservation System version 1.1. The flaw resides in an unspecified function within the /index.php file and is triggered by unsanitized input supplied to the index/pickup_id parameter. It is tracked as CWE-79 and received a CVSS v3.1 base score of 4.3.
An unauthenticated remote attacker can exploit the issue by supplying a crafted payload that executes in the browser of a victim who follows a malicious link. Successful exploitation permits limited alteration of page content but does not affect confidentiality or availability.
Public references include a PacketStorm disclosure containing proof-of-concept details and multiple VulDB entries; no vendor patch or mitigation guidance has been published because the vendor did not respond to coordinated disclosure attempts. The associated EPSS score has remained in the 0.17–0.19 range without notable increase.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-53997
Vulnerability Data
A vulnerability was found in PHP Jabbers Bus Reservation System 1.1 and classified as problematic. Affected by this issue is some unknown functionality of the file /index.php. The manipulation of the argument index/pickup_id leads to cross site scripting. The attack…
more
may be launched remotely. VDB-235958 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
- 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.