GHSA-259v-xm34-p7fr Typo3 Cross-Site Scripting in Language Pack Handling
Not scored
Published
Check this codebase for GHSA-259v-xm34-p7fr and fix it if it is affected.
What it is: GHSA-259v-xm34-p7fr is a cross-site scripting vulnerability in typo3/cms, published on 5 Jun 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of GHSA-259v-xm34-p7fr in the wild and no public exploit code.
Affected packages and fixed versions:
- typo3/cms (Packagist): affected from 9.0.0; fixed in 9.5.4
- typo3/cms (Packagist): affected from 9.0.0; fixed in 9.5.4
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/GHSA-259v-xm34-p7fr/ (Markdown: https://insights.sbomify.com/GHSA-259v-xm34-p7fr/index.md)
An attacker can execute arbitrary scripts in the TYPO3 install tool via malicious language packs, potentially compromising the installation process.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is GHSA-259v-xm34-p7fr?
GHSA-259v-xm34-p7fr is a cross-site scripting vulnerability in typo3/cms, published on 5 Jun 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Failing to properly encode information from external sources, language pack handling in the install tool is vulnerable to cross-site scripting.
Which versions are affected by GHSA-259v-xm34-p7fr?
2 open source packages ship an affected version, including typo3/cms.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms Packagist | From 9.0.0 | 9.5.4 |
typo3/cms Packagist | From 9.0.0 | 9.5.4 |
How do I fix GHSA-259v-xm34-p7fr?
Upgrade typo3/cms to 9.5.4 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is GHSA-259v-xm34-p7fr being exploited?
There is no known exploitation of GHSA-259v-xm34-p7fr in the wild and no public exploit code.