How severe is CVE-2026-0591?

CVE-2026-0591 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-0591 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.

What products are affected by CVE-2026-0591?

CVE-2026-0591 affects Fabian Online Product Reservation System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0591?

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

Does CVE-2026-0591 have an EU (EUVD) identifier?

Yes. CVE-2026-0591 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0853.

When was CVE-2026-0591 published?

CVE-2026-0591 was published on 2026-01-05 and last updated on 2026-06-17.

CVE-2026-0591

CVE-2026-0591 is a medium-severity vulnerability in Fabian Online Product Reservation System with a CVSS 3.x base score of 6.3. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-0853
Weakness: CWE-74
Affected product: Fabian Online Product Reservation System
Published: 2026-01-05
Last modified: 2026-06-17

Description

A vulnerability was identified in code-projects Online Product Reservation System 1.0. The impacted element is an unknown function of the file /app/checkout/update.php of the component Cart Update Handler. Such manipulation of the argument id/qty leads to sql injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used.

Frequently asked questions

What is CVE-2026-0591?: A vulnerability was identified in code-projects Online Product Reservation System 1.0. The impacted element is an unknown function of the file /app/checkout/update.php of the component Cart Update Handler. Such manipulation of the argument id/qty leads to sql injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used.
How severe is CVE-2026-0591?: CVE-2026-0591 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-0591 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.
What products are affected by CVE-2026-0591?: CVE-2026-0591 affects Fabian Online Product Reservation System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0591?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-0591 have an EU (EUVD) identifier?: Yes. CVE-2026-0591 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0853.
When was CVE-2026-0591 published?: CVE-2026-0591 was published on 2026-01-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:fabian:online_product_reservation_system:1.0:*:*:*:*:*:*:*

More vulnerabilities in Fabian Online Product Reservation System

CVE-2026-0592 — High (CVSS 7.3): A security flaw has been discovered in code-projects Online Product Reservation System 1.0. This affects an unknown…
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