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PHP CVE-2026-5811

| EUVD-2026-20788 LOW
Business Logic Errors (CWE-840)
2026-04-08 cna@vuldb.com GHSA-g2vp-wffw-c4mw
2.1
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.1 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

6
Severity Changed
Apr 29, 2026 - 01:11 NVD
MEDIUM LOW
CVSS changed
Apr 29, 2026 - 01:11 NVD
5.3 (MEDIUM) 2.1 (LOW)
EUVD ID Assigned
Apr 08, 2026 - 23:24 euvd
EUVD-2026-20788
Analysis Generated
Apr 08, 2026 - 23:24 vuln.today
CVE Published
Apr 08, 2026 - 23:17 nvd
MEDIUM 5.3
PoC Detected
Apr 08, 2026 - 23:17 vuln.today
Public exploit code

DescriptionCVE.org

A vulnerability was identified in SourceCodester Online Food Ordering System 1.0. Affected by this issue is the function save_product of the file /Actions.php of the component POST Parameter Handler. Such manipulation of the argument price leads to business logic errors. The attack may be performed from remote. The exploit is publicly available and might be used.

AnalysisAI

SourceCodester Online Food Ordering System 1.0 allows authenticated remote attackers to manipulate product pricing through the save_product function in Actions.php, leading to business logic errors including potential negative or arbitrary price values. The vulnerability affects the POST parameter handler and carries a CVSS score of 5.3 with publicly available exploit code; while not in CISA's KEV catalog, the public exploit availability and disclosure via vuldb indicate real-world exposure.

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Vulnerability AssessmentAI

Risk Assessment The CVSS 4.0 vector indicates a low-to-moderate attack profile: network-accessible (AV:N), low complexity (AC:L), requiring authenticated access (PR:L), with integrity impact limited (VI:L, VA:L) and no confidentiality or availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated vendor or low-privileged user with product management access submits a POST request to the save_product function in Actions.php with a negative or extremely large price value in the price parameter. Because the application fails to validate the input server-side, the price is accepted and stored in the database, resulting in incorrect order calculations-for example, negative prices could generate credits instead of charges, or inflated prices could be applied to subsequent orders. …
Remediation The primary remediation is to upgrade to a patched version of SourceCodester Online Food Ordering System if one is available from the vendor at sourcecodester.com. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-5811 vulnerability details – vuln.today

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