How severe is CVE-2023-51321?

CVE-2023-51321 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-51321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51321?

CVE-2023-51321 affects Phpjabbers Night Club Booking Software. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51321?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-51321 have an EU (EUVD) identifier?

Yes. CVE-2023-51321 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56042.

When was CVE-2023-51321 published?

CVE-2023-51321 was published on 2025-02-20 and last updated on 2026-06-17.

CVE-2023-51321

CVE-2023-51321 is a medium-severity vulnerability in Phpjabbers Night Club Booking Software with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-290.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56042
Weakness: CWE-290
Affected product: Phpjabbers Night Club Booking Software
Published: 2025-02-20
Last modified: 2026-06-17

Description

A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Night Club Booking Software 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.

Frequently asked questions

What is CVE-2023-51321?: A lack of rate limiting in the 'Forgot Password' feature of PHPJabbers Night Club Booking Software 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.
How severe is CVE-2023-51321?: CVE-2023-51321 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-51321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51321?: CVE-2023-51321 affects Phpjabbers Night Club Booking Software. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51321?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-51321 have an EU (EUVD) identifier?: Yes. CVE-2023-51321 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56042.
When was CVE-2023-51321 published?: CVE-2023-51321 was published on 2025-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpjabbers:night_club_booking_software:1.0:*:*:*:*:*:*:*

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