# CVE-2018-8715: Auth bypass in n/a

> Attackers can bypass authentication in Embedthis Appweb via forged HTTP requests, allowing unauthorized access to protected resources.

- **Severity:** High 8.1 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-jxh6-wcr3-pf67

## What is CVE-2018-8715?

CVE-2018-8715 is a high-severity authentication bypass vulnerability in n/a, published on 14 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Embedthis HTTP library, and Appweb versions before 7.0.3, have a logic flaw related to the authCondition function in http/httpLib.c. With a forged HTTP request, it is possible to bypass authentication for the form and digest login types.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2018-8715?

It affects 1 product.


Products: Embedthis Appweb.

## How do I fix CVE-2018-8715?

No fix has been published for CVE-2018-8715 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8715 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-8715 exists.

Public exploit code:

- Vulhub appweb/CVE-2018-8715: Appweb Digest Authentication Bypass (CVE-2018-8715), run with Isoloom (github_poc): https://github.com/CyberCTF/vulhub-appweb-cve-2018-8715
- AppWeb - Authentication Bypass (nuclei): http/cves/2018/CVE-2018-8715.yaml

## Other vulnerabilities in n/a

- [CVE-2021-33254](https://insights.sbomify.com/CVE-2021-33254/): Null dereference in n/a (high 7.5)
- [CVE-2020-15689](https://insights.sbomify.com/CVE-2020-15689/): Null dereference in n/a (high 7.5)
- [CVE-2018-15504](https://insights.sbomify.com/CVE-2018-15504/): Null dereference in n/a (high 7.5)
- [CVE-2018-15505](https://insights.sbomify.com/CVE-2018-15505/): Null dereference in n/a (high 7.5)
- [CVE-2014-9708](https://insights.sbomify.com/CVE-2014-9708/): Null dereference in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-8715 and fix it if it is affected.

What it is: CVE-2018-8715 is a high-severity authentication bypass vulnerability in n/a, published on 14 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-8715 exists.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2018-8715/ (Markdown: https://insights.sbomify.com/CVE-2018-8715/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8715
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8715
- OSV: https://osv.dev/vulnerability/CVE-2018-8715

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8715/
Summaries are generated and may contain mistakes; the official description above is the record.