CVE-2023-51319: PHPJabbers Bus Reservation System v1.1 is vulnerable to CSV Injection vulnerability which allows an attacker t

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HIGH 8.8DOWNGRADE

CVE-2023-51319 is a high-severity flaw (CVSS 8.8) affecting bus reservation system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 to construct CSV file.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-1236
Published	2025-02-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: phpjabbers

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-02-20 16:15 UTCPublished CVE record published
2026-06-17 06:40 UTCUpdated Record last modified

phpjabbers bus reservation system DOWNGRADE

Affected: 1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

apt-cache policy bus-reservation-system || rpm -q bus-reservation-system || bus-reservation-system --version

2. No fixed release: DOWNGRADE to a release before 1.1 (Debian / Ubuntu)

apt-cache madison bus-reservation-system sudo apt install bus-reservation-system=<VERSION_BEFORE_1.1> sudo apt-mark hold bus-reservation-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list bus-reservation-system sudo dnf downgrade bus-reservation-system-<VERSION_BEFORE_1.1> sudo dnf versionlock add bus-reservation-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-51319?

bus reservation system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-51319 being exploited?

CVE-2023-51319 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-51319 affect?

CVE-2023-51319 affects bus reservation system. Severity is high (CVSS 8.8). 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 fi

How urgent is CVE-2023-51319?

Priority 49/100. High severity; Public exploit reference

Related CVEs

CVE-2025-3139 MEDIUM 5.3 DOWNGRADE A vulnerability was found in code-projects Bus Reservation System 1.0 and classified as critical
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CVE-2023-51318 MEDIUM 5.4 DOWNGRADE PHPJabbers Bus Reservation System v1.1 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) in the "tit
CVE-2023-51316 HIGH 7.5 DOWNGRADE A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Bus Reservation System v1.1 allows atta

References

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