# CVE-2022-27305: Auth bypass in n/a

> Attackers can hijack user sessions in Gibbon because the application fails to regenerate session IDs after authentication.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 25 May 2022
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-4mq5-8jvh-qq3p

## What is CVE-2022-27305?

CVE-2022-27305 is a high-severity authentication bypass vulnerability in n/a, published on 25 May 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Gibbon v23 does not generate a new session ID cookie after a user authenticates, making the application vulnerable to session fixation.

Weakness: CWE-384 (Session Fixation)

## Which versions are affected by CVE-2022-27305?

It affects 1 product.


Products: Gibbonedu Gibbon.

## How do I fix CVE-2022-27305?

No fix has been published for CVE-2022-27305 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-27305 being exploited?

There is no known exploitation of CVE-2022-27305 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2024-24724](https://insights.sbomify.com/CVE-2024-24724/): Code injection in n/a (critical 9.8)
- [CVE-2023-45878](https://insights.sbomify.com/CVE-2023-45878/): File upload in n/a (critical 9.8)
- [CVE-2023-34598](https://insights.sbomify.com/CVE-2023-34598/): Path traversal in n/a (critical 9.8)
- [CVE-2024-24725](https://insights.sbomify.com/CVE-2024-24725/): Deserialization in n/a (high 8.8)
- [CVE-2023-45880](https://insights.sbomify.com/CVE-2023-45880/): Path traversal in n/a (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-27305 and fix it if it is affected.

What it is: CVE-2022-27305 is a high-severity authentication bypass vulnerability in n/a, published on 25 May 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-27305 in the wild and no public exploit code.

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-2022-27305/ (Markdown: https://insights.sbomify.com/CVE-2022-27305/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-27305
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-27305
- OSV: https://osv.dev/vulnerability/CVE-2022-27305

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-27305/
Summaries are generated and may contain mistakes; the official description above is the record.