# CVE-2023-47127: Weak Authentication in Session Handling in typo3/cms-core > Attackers can reuse session cookies across different sites in a multi-site TYPO3 installation to bypass authentication and access unauthorized areas. - **Severity:** Medium 4.2 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 14 Nov 2023 - **Updated:** 29 Aug 2024 - **Also known as:** BIT-typo3-2023-47127, GHSA-3vmm-7h4j-69rm ## What is CVE-2023-47127? CVE-2023-47127 is a medium-severity authentication bypass vulnerability in Typo3 Typo3, published on 14 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim. ### Official description TYPO3 is an open source PHP based web content management system released under the GNU GPL. In typo3 installations there are always at least two different sites. Eg. first.example.org and second.example.com. In affected versions a session cookie generated for the first site can be reused on the second site without requiring additional authentication. This vulnerability has been addressed in versions 8.7.55, 9.5.44, 10.4.41, 11.5.33, and 12.4.8. Users are advised to upgrade. There are no known workarounds for this vulnerability. Weakness: CWE-287 (Improper Authentication), CWE-302 (Authentication Bypass by Assumed-Immutable Data) ## Which versions are affected by CVE-2023-47127? 11 open source packages ship an affected version, including typo3/cms-core and typo3. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `typo3/cms-core` | Packagist | From 10.0.0 | 10.4.41 | | `typo3/cms-core` | Packagist | From 10.0.0 | 10.4.41 | | `typo3/cms-core` | Packagist | From 11.0.0 | 11.5.33 | | `typo3/cms-core` | Packagist | From 11.0.0 | 11.5.33 | | `typo3/cms-core` | Packagist | From 12.0.0 | 12.4.8 | | `typo3/cms-core` | Packagist | From 12.0.0 | 12.4.8 | | `typo3/cms-core` | Packagist | From 8.0.0 | 8.7.55 | | `typo3/cms-core` | Packagist | From 8.0.0 | 8.7.55 | | `typo3/cms-core` | Packagist | From 9.0.0 | 9.5.44 | | `typo3/cms-core` | Packagist | From 9.0.0 | 9.5.44 | | `typo3` | Bitnami | From 8.0.0 | 8.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8 | Products: Typo3 Typo3. ## How do I fix CVE-2023-47127? Upgrade typo3/cms-core to a fixed version for your release line: 10.4.41, 11.5.33, 12.4.8 or 8.7.55. ## Is CVE-2023-47127 being exploited? There is no known exploitation of CVE-2023-47127 in the wild and no public exploit code. ## Other vulnerabilities in Typo3 Typo3 - [CVE-2009-0258](https://insights.sbomify.com/CVE-2009-0258/): Indexed Search Engine for TYPO3 Command Execution via Metacharacter Injection (critical 10.0) - [CVE-2011-3583](https://insights.sbomify.com/CVE-2011-3583/): Typo3 SQL injection due to faulty prepared statements (critical 9.8) - [CVE-2011-4628](https://insights.sbomify.com/CVE-2011-4628/): Typo3 Authentication Bypass (critical 9.8) - [CVE-2023-24814](https://insights.sbomify.com/CVE-2023-24814/): Persisted Cross-Site Scripting in Frontend Rendering in typo3 (high 8.8) - [CVE-2021-41113](https://insights.sbomify.com/CVE-2021-41113/): Cross-Site-Request-Forgery in Backend URI Handling in Typo3 (high 8.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2023-47127 and fix it if it is affected. What it is: CVE-2023-47127 is a medium-severity authentication bypass vulnerability in Typo3 Typo3, published on 14 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2023-47127 in the wild and no public exploit code. Affected packages and fixed versions: - typo3/cms-core (Packagist): affected from 10.0.0; fixed in 10.4.41 - typo3/cms-core (Packagist): affected from 10.0.0; fixed in 10.4.41 - typo3/cms-core (Packagist): affected from 11.0.0; fixed in 11.5.33 - typo3/cms-core (Packagist): affected from 11.0.0; fixed in 11.5.33 - typo3/cms-core (Packagist): affected from 12.0.0; fixed in 12.4.8 - typo3/cms-core (Packagist): affected from 12.0.0; fixed in 12.4.8 - typo3/cms-core (Packagist): affected from 8.0.0; fixed in 8.7.55 - typo3/cms-core (Packagist): affected from 8.0.0; fixed in 8.7.55 - typo3/cms-core (Packagist): affected from 9.0.0; fixed in 9.5.44 - typo3/cms-core (Packagist): affected from 9.0.0; fixed in 9.5.44 - typo3 (Bitnami): affected from 8.0.0; fixed in 8.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8 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-2023-47127/ (Markdown: https://insights.sbomify.com/CVE-2023-47127/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2023-47127 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-47127 - OSV: https://osv.dev/vulnerability/CVE-2023-47127 --- From sbomify Insights: https://insights.sbomify.com/CVE-2023-47127/ Summaries are generated and may contain mistakes; the official description above is the record.