CVE-2023-51332: A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Meeting Room Booking System v1.0 allows

Routine

MEDIUM 4.3DOWNGRADE

CVE-2023-51332 is a medium-severity flaw (CVSS 4.3) affecting meeting room booking system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Meeting Room Booking System v1.0 allows attackers to send an excessive amount of email for a legitimate user, leading to a possible Denial of Service (DoS) via a large amount of generated e-mail messages.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-404
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 meeting room booking system DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy meeting-room-booking-system || rpm -q meeting-room-booking-system || meeting-room-booking-system --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison meeting-room-booking-system sudo apt install meeting-room-booking-system=<VERSION_BEFORE_1.0> sudo apt-mark hold meeting-room-booking-system

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

dnf --showduplicates list meeting-room-booking-system sudo dnf downgrade meeting-room-booking-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add meeting-room-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-2023-51332?

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

Is CVE-2023-51332 being exploited?

CVE-2023-51332 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-2023-51332 affect?

CVE-2023-51332 affects meeting room booking system. Severity is medium (CVSS 4.3). A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Meeting Room Booking System v1.0 allows attackers to send an excessive amount of email for a legitimate user, leading to a possible Denial of Service (DoS) via a large a

How urgent is CVE-2023-51332?

Priority 29/100. Public exploit reference

Related CVEs

CVE-2023-51338 MEDIUM 5.4 DOWNGRADE PHPJabbers Meeting Room Booking System v1.0 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) in the
CVE-2023-51336 HIGH 8.8 DOWNGRADE PHPJabbers Meeting Room Booking System v1.0 is vulnerable to CSV Injection vulnerability which allows an attac

References

← Back to latest CVEs