Security Resilience

CVE-2023-51319

Phpjabbers Bus Reservation System 1.1

Public PoC
Published
20 February 2025
Modified
04 November 2025
Patch / advisory
View advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0070 52th percentile
Risk Priority 65 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

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 LSASS Memory (T1003.001); ranked in the top 48% of CVEs by exploit likelihood; 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

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)
CWE-1236

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
attack.mitre.org →
T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
attack.mitre.org →
T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
attack.mitre.org →
T1012 Query Registry Discovery
Adversaries may interact with the Windows Registry to gather information about the system, configuration, and installed software.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-4111Same product: Phpjabbers Bus Reservation System
CVE-2023-51318Same product: Phpjabbers Bus Reservation System
CVE-2023-53877Same product: Phpjabbers Bus Reservation System
CVE-2023-51336Same vendor: Phpjabbers
CVE-2023-51302Same vendor: Phpjabbers
CVE-2023-51311Same vendor: Phpjabbers
CVE-2023-48207Same vendor: Phpjabbers
CVE-2023-51316Same product: Phpjabbers Bus Reservation System
CVE-2023-51333Same vendor: Phpjabbers
CVE-2023-51298Same vendor: Phpjabbers

Affected Assets

phpjabbers
bus reservation system
1.1

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.10

Mitigating Controls (NIST 800-53 r5) AI

SI-15 Information Output Filtering good match

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.

PR.PS-06 partial match
blocks

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.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References