CVE-2016-5251 Other in n/a
Medium 4.3
Published
Updated
Check this codebase for CVE-2016-5251 and fix it if it is affected.
What it is: CVE-2016-5251 is a medium-severity vulnerability in Mozilla Firefox, published on 5 Aug 2016. 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-2016-5251 in the wild and no public exploit code.
Affected product: Mozilla Firefox. 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-2016-5251/ (Markdown: https://insights.sbomify.com/CVE-2016-5251/index.md)
Remote attackers can spoof the browser location bar using crafted data URLs, potentially misleading users about the current site.
- 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
What is CVE-2016-5251?
CVE-2016-5251 is a medium-severity vulnerability in Mozilla Firefox, published on 5 Aug 2016. 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
Mozilla Firefox before 48.0 allows remote attackers to spoof the location bar via crafted characters in the media type of a data: URL.
Weakness: CWE-20
Which versions are affected by CVE-2016-5251?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2016-5251?
Upgrade to a fixed version.
Is CVE-2016-5251 being exploited?
There is no known exploitation of CVE-2016-5251 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-p834-7563-6j4f, UBUNTU-CVE-2016-5251.