Is CVE-2026-30574 in the CISA KEV catalog?

No. CVE-2026-30574 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-30574?

CVE-2026-30574 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2026-30574?

CVE-2026-30574 has an EPSS score of 0.26% (17th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-30574

HIGH

7.5

CVSS v3

NVD

Description

A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-sales.php file. The application fails to verify if the requested sales quantity (txtqty) exceeds the available stock level. An attacker can manipulate the request to purchase a quantity that is significantly higher than the actual available stock.

CWE-841

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

0.26%probability of exploitation in 30 days

17thpercentile

Low risk: more likely to be exploited than 17% of all known CVEs.

References

https://github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddSales-Overselling.md

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-31.