How severe is CVE-2026-5326?

CVE-2026-5326 has a CVSS 3.x base score of 5.3, 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 none, and availability none.

Is CVE-2026-5326 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5326?

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

Does CVE-2026-5326 have an EU (EUVD) identifier?

Yes. CVE-2026-5326 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18188.

When was CVE-2026-5326 published?

CVE-2026-5326 was published on 2026-04-02 and last updated on 2026-06-17.

CVE-2026-5326

CVE-2026-5326 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-285.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
CVSS v4: 5.5
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18188
Weakness: CWE-285
Published: 2026-04-02
Last modified: 2026-06-17

Description

A vulnerability was identified in SourceCodester Leave Application System 1.0. Impacted is an unknown function of the file /index.php?page=manage_user of the component User Information Handler. Such manipulation of the argument ID leads to authorization bypass. The attack can be executed remotely. The exploit is publicly available and might be used.

Frequently asked questions

What is CVE-2026-5326?: A vulnerability was identified in SourceCodester Leave Application System 1.0. Impacted is an unknown function of the file /index.php?page=manage_user of the component User Information Handler. Such manipulation of the argument ID leads to authorization bypass. The attack can be executed remotely. The exploit is publicly available and might be used.
How severe is CVE-2026-5326?: CVE-2026-5326 has a CVSS 3.x base score of 5.3, 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 none, and availability none.
Is CVE-2026-5326 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5326?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5326 have an EU (EUVD) identifier?: Yes. CVE-2026-5326 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18188.
When was CVE-2026-5326 published?: CVE-2026-5326 was published on 2026-04-02 and last updated on 2026-06-17.

References

Other CWE-285 (Improper Authorization) vulnerabilities

CVE-2025-65041 — Critical (CVSS 10.0): Improper authorization in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
CVE-2023-33189 — Critical (CVSS 10.0): Pomerium is an identity and context-aware access proxy. With specially crafted requests, incorrect authorization…
CVE-2022-2595 — Critical (CVSS 10.0): Improper Authorization in GitHub repository kromitgmbh/titra prior to 0.79.1.
CVE-2021-28799 — Critical (CVSS 10.0): An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If…
CVE-2026-34048 — Critical (CVSS 9.9): Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to…
CVE-2026-5412 — Critical (CVSS 9.9): In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated…

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