# CVE-2026-86669: aircheng-org iWebShop-5 systemseller.php login improper authentication

> Attackers can bypass authentication in the iWebShop seller login by manipulating the Name argument, potentially taking over accounts.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Sep 2026
- **Updated:** 8 Sep 2026
- **Also known as:** GHSA-mcm8-h6h3-g8wf

## What is CVE-2026-86669?

CVE-2026-86669 is a medium-severity authentication bypass vulnerability in aircheng-org iWebShop-5, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was detected in aircheng-org iWebShop-5 up to 5.15. This affects the function Login of the file controllers/systemseller.php. Performing a manipulation of the argument Name results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-86669?


## How do I fix CVE-2026-86669?

No fix has been published for CVE-2026-86669 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-86669 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86669 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-86669 and fix it if it is affected.

What it is: CVE-2026-86669 is a medium-severity authentication bypass vulnerability in aircheng-org iWebShop-5, published on 8 Sep 2026. 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-2026-86669 exists.

Affected product: aircheng-org iWebShop-5. 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-2026-86669/ (Markdown: https://insights.sbomify.com/CVE-2026-86669/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-86669
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-86669
- OSV: https://osv.dev/vulnerability/CVE-2026-86669

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-86669/
Summaries are generated and may contain mistakes; the official description above is the record.