How severe is CVE-2026-30558?

CVE-2026-30558 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-30558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30558?

CVE-2026-30558 affects Ahsanriaz26gmailcom Sales And Inventory System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30558?

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

Does CVE-2026-30558 have an EU (EUVD) identifier?

Yes. CVE-2026-30558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17097.

When was CVE-2026-30558 published?

CVE-2026-30558 was published on 2026-03-30 and last updated on 2026-06-17.

CVE-2026-30558

CVE-2026-30558 is a medium-severity vulnerability in Ahsanriaz26gmailcom Sales And Inventory System with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17097
Weakness: CWE-79
Affected product: Ahsanriaz26gmailcom Sales And Inventory System
Published: 2026-03-30
Last modified: 2026-06-17

Description

A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the add_customer.php file via the "msg" parameter. The application fails to sanitize the input, allowing remote attackers to inject arbitrary web script or HTML via a crafted URL.

Frequently asked questions

What is CVE-2026-30558?: A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the add_customer.php file via the "msg" parameter. The application fails to sanitize the input, allowing remote attackers to inject arbitrary web script or HTML via a crafted URL.
How severe is CVE-2026-30558?: CVE-2026-30558 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-30558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30558?: CVE-2026-30558 affects Ahsanriaz26gmailcom Sales And Inventory System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30558?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-30558 have an EU (EUVD) identifier?: Yes. CVE-2026-30558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17097.
When was CVE-2026-30558 published?: CVE-2026-30558 was published on 2026-03-30 and last updated on 2026-06-17.

References

https://github.com/meifukun/Web-Security-PoCs/blob/main/Inventory-System/XSS-AddCustomer-msg.md

Affected products (1)

cpe:2.3:a:ahsanriaz26gmailcom:sales_and_inventory_system:1.0:*:*:*:*:*:*:*

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