# CVE-2002-1560: Auth bypass in n/a

> Remote attackers can bypass authentication and gain administrative privileges in gBook by manipulating the login parameter.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Sep 2004
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-93p7-xqj5-p562

## What is CVE-2002-1560?

CVE-2002-1560 is a critical authentication bypass vulnerability in n/a, published on 1 Sep 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

index.php in gBook 1.4 allows remote attackers to bypass authentication and gain administrative privileges by setting the login parameter to true.

## Which versions are affected by CVE-2002-1560?

It affects 1 product.


Products: Martin Bauer Gbook.

## How do I fix CVE-2002-1560?

No fix has been published for CVE-2002-1560 yet. Limit exposure of the affected software until one is available.

## Is CVE-2002-1560 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2002-1560 exists.

Public exploit code:

- gBook 1.4 - Administrative Access (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2005-4727](https://insights.sbomify.com/CVE-2005-4727/): Cross-site scripting in n/a (medium 5.1)
- [CVE-2004-2351](https://insights.sbomify.com/CVE-2004-2351/): Cross-site scripting in n/a (medium 4.3)
- [CVE-2004-2352](https://insights.sbomify.com/CVE-2004-2352/): Cross-site scripting in n/a (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2002-1560 and fix it if it is affected.

What it is: CVE-2002-1560 is a critical authentication bypass vulnerability in n/a, published on 1 Sep 2004. 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-2002-1560 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-2002-1560/ (Markdown: https://insights.sbomify.com/CVE-2002-1560/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2002-1560
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2002-1560
- OSV: https://osv.dev/vulnerability/CVE-2002-1560

---
From sbomify Insights: https://insights.sbomify.com/CVE-2002-1560/
Summaries are generated and may contain mistakes; the official description above is the record.