CVE-2023-51317: PHPJabbers Restaurant Booking System v3.0 is vulnerable to Multiple HTML Injection in the "name, plugin_sms_ap

This week

MEDIUM 6.5REMOTEDOWNGRADE

CVE-2023-51317 is a medium-severity flaw (CVSS 6.5) affecting restaurant booking system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHPJabbers Restaurant Booking System v3.0 is vulnerable to Multiple HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-94
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 restaurant booking system DOWNGRADE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

apt-cache policy restaurant-booking-system || rpm -q restaurant-booking-system || restaurant-booking-system --version

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison restaurant-booking-system sudo apt install restaurant-booking-system=<VERSION_BEFORE_3.0> sudo apt-mark hold restaurant-booking-system

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

dnf --showduplicates list restaurant-booking-system sudo dnf downgrade restaurant-booking-system-<VERSION_BEFORE_3.0> sudo dnf versionlock add restaurant-booking-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-2023-51317?

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

Is CVE-2023-51317 being exploited?

CVE-2023-51317 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-2023-51317 affect?

CVE-2023-51317 affects restaurant booking system. Severity is medium (CVSS 6.5). PHPJabbers Restaurant Booking System v3.0 is vulnerable to Multiple HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.

How urgent is CVE-2023-51317?

Priority 42/100. Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-51315 MEDIUM 5.4 DOWNGRADE PHPJabbers Restaurant Booking System v3.0 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) in the "
CVE-2023-51314 HIGH 7.5 DOWNGRADE A lack of rate limiting in the 'Forgot Password', 'Email Settings' feature of PHPJabbers Restaurant Booking Sy
CVE-2023-51313 HIGH 8.8 DOWNGRADE PHPJabbers Restaurant Booking System v3.0 is vulnerable to CSV Injection vulnerability which allows an attacke
CVE-2023-51312 MEDIUM 5.4 DOWNGRADE PHPJabbers Restaurant Booking System v3.0 is vulnerable to Reflected Cross-Site Scripting (XSS) in Reservation

References

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