How severe is CVE-2026-5558?

CVE-2026-5558 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-2026-5558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5558?

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

Does CVE-2026-5558 have an EU (EUVD) identifier?

Yes. CVE-2026-5558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19063.

When was CVE-2026-5558 published?

CVE-2026-5558 was published on 2026-04-05 and last updated on 2026-06-17.

CVE-2026-5558

CVE-2026-5558 is a medium-severity vulnerability 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% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19063
Weakness: CWE-74
Published: 2026-04-05
Last modified: 2026-06-17

Description

A flaw has been found in PHPGurukul PHPGurukul Online Shopping Portal Project up to 2.1. Impacted is an unknown function of the file /pending-orders.php of the component Parameter Handler. This manipulation of the argument ID causes sql injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

Frequently asked questions

What is CVE-2026-5558?: A flaw has been found in PHPGurukul PHPGurukul Online Shopping Portal Project up to 2.1. Impacted is an unknown function of the file /pending-orders.php of the component Parameter Handler. This manipulation of the argument ID causes sql injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.
How severe is CVE-2026-5558?: CVE-2026-5558 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-2026-5558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5558?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5558 have an EU (EUVD) identifier?: Yes. CVE-2026-5558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19063.
When was CVE-2026-5558 published?: CVE-2026-5558 was published on 2026-04-05 and last updated on 2026-06-17.

References

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