HOMEVULNERABILITIESCVE-2026-30576
HIGH

CVE-2026-30576

CWE-20Published: March 27, 2026· Updated: Mar 31, 2026

7.5
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:13.0th

Official Description

A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-stock.php file. The application fails to validate the "txtprice" and "txttotalcost" parameters during stock entry, allowing negative financial values to be submitted. This leads to corruption of financial records, allowing attackers to manipulate inventory asset values and procurement costs.

NVD Source

Technical Analysis

CVE-2026-30576 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
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

Affected Vendors & Products

senior-walter1 product
web-based pharmacy product management system
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddStock-NegativePrice.md

All References (1)

→
https://github.com/meifukun/Web-Security-PoCs/blob/main/Pharmacy-Product-Management-System/Logic-AddStock-NegativePrice.mdExploit · Third Party Advisory

Quick Facts

CVE IDCVE-2026-30576
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMar 27, 2026

Related CVEs (CWE-20)

CVE-2026-48281
10.0
CVE-2026-48055
10.0
CVE-2026-0848
10.0
CVE-2026-48277
10.0
CVE-2026-33587
10.0
CVE-2026-34910
KEV10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-30576 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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