How severe is CVE-2026-5330?

CVE-2026-5330 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 none, integrity low, and availability low.

Is CVE-2026-5330 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5330?

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

Does CVE-2026-5330 have an EU (EUVD) identifier?

Yes. CVE-2026-5330 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18215.

When was CVE-2026-5330 published?

CVE-2026-5330 was published on 2026-04-02 and last updated on 2026-06-17.

CVE-2026-5330

CVE-2026-5330 is a medium-severity vulnerability 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-266.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.4
CVSS v4: 5.5
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18215
Weakness: CWE-266
Published: 2026-04-02
Last modified: 2026-06-17

Description

A vulnerability was found in SourceCodester/mayuri_k Best Courier Management System 1.0. Affected by this issue is some unknown functionality of the file /ajax.php?action=delete_user of the component User Delete Handler. Performing a manipulation of the argument ID results in improper access controls. The attack may be initiated remotely. The exploit has been made public and could be used.

Frequently asked questions

What is CVE-2026-5330?: A vulnerability was found in SourceCodester/mayuri_k Best Courier Management System 1.0. Affected by this issue is some unknown functionality of the file /ajax.php?action=delete_user of the component User Delete Handler. Performing a manipulation of the argument ID results in improper access controls. The attack may be initiated remotely. The exploit has been made public and could be used.
How severe is CVE-2026-5330?: CVE-2026-5330 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 none, integrity low, and availability low.
Is CVE-2026-5330 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5330?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5330 have an EU (EUVD) identifier?: Yes. CVE-2026-5330 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18215.
When was CVE-2026-5330 published?: CVE-2026-5330 was published on 2026-04-02 and last updated on 2026-06-17.

References

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