CVE-2023-51319
Phpjabbers Bus Reservation System 1.1
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSummary
CVE-2023-51319 is a high-severity Improper Neutralization of Formula Elements in a CSV File (CWE-1236) vulnerability in Phpjabbers Bus Reservation System. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique User Execution (T1204); ranked at the 49th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SI-15 (Information Output Filtering) — see the control section below for these in your framework.
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-2023-51319 is a CSV Injection vulnerability in PHPJabbers Bus Reservation System version 1.1. The issue arises from insufficient input validation in the Languages section Labels any parameters field within System Options, where user-supplied data is used to construct CSV files without proper sanitization. This flaw enables attackers to embed malicious payloads in exported CSV content.
An unauthenticated attacker (PR:N) can exploit this over the network (AV:N) with low attack complexity (AC:L), though it requires user interaction (UI:R), such as opening the CSV file in a spreadsheet application like Excel. Successful exploitation allows remote code execution, resulting in high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H), with a CVSS v3.1 base score of 8.8 and no change in scope (S:U). The vulnerability is associated with CWE-1236.
Advisories detailing the vulnerability are available from Packet Storm Security at https://packetstorm.news/files/id/176500 and http://packetstormsecurity.com/files/176500/PHPJabbers-Bus-Reservation-System-1.1-CSV-Injection.html. The vendor's product page, including a demo section, is at https://www.phpjabbers.com/bus-reservation-system/#sectionDemo. No specific patch or mitigation guidance is detailed in the provided references.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-56040
Vulnerability Data
PHPJabbers Bus Reservation System v1.1 is vulnerable to CSV Injection vulnerability which allows an attacker to execute remote code. The vulnerability exists due to insufficient input validation on Languages section Labels any parameters field in System Options that is used…
more
to construct CSV file.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.2.10
Mitigating Controls (NIST 800-53 r5) AI
Output filtering/validation directly stops unneutralized formula elements from being written into CSV files.
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 require output neutralization for untrusted CSV content to block formula injection.
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.
Security testing in development can detect formula injection but does not itself implement the mitigation.
Secure SDLC mandates input validation and output encoding that directly prevents formula injection in CSV exports.
Application security requirements include rules for safe CSV generation and handling of untrusted data.
Secure architecture principles encourage safe data export design but do not specifically address CSV formula neutralization.
Secure coding standards explicitly require neutralization of special characters when writing CSV files.