# CVE-2011-2978: Business logic in n/a

> Attackers can change email addresses on unattended workstations, potentially leading to account takeover in Bugzilla.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 9 Aug 2011
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-rrm5-5c6m-75m4

## What is CVE-2011-2978?

CVE-2011-2978 is a medium-severity vulnerability in Mozilla Bugzilla, published on 9 Aug 2011. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Bugzilla 2.16rc1 through 2.22.7, 3.0.x through 3.3.x, 3.4.x before 3.4.12, 3.5.x, 3.6.x before 3.6.6, 3.7.x, 4.0.x before 4.0.2, and 4.1.x before 4.1.3 does not prevent changes to the confirmation e-mail address (aka old_email field) for e-mail change notifications, which makes it easier for remote attackers to perform arbitrary address changes by leveraging an unattended workstation.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2011-2978?

It affects 1 product.


Products: Mozilla Bugzilla.

## How do I fix CVE-2011-2978?

Upgrade to a fixed version.

## Is CVE-2011-2978 being exploited?

There is no known exploitation of CVE-2011-2978 in the wild and no public exploit code.

## Other vulnerabilities in Mozilla Bugzilla

- [CVE-2004-0769](https://insights.sbomify.com/CVE-2004-0769/): Memory corruption in n/a (critical 10.0)
- [CVE-2003-1042](https://insights.sbomify.com/CVE-2003-1042/): SQL injection in n/a (critical 10.0)
- [CVE-2003-1043](https://insights.sbomify.com/CVE-2003-1043/): SQL injection in n/a (critical 10.0)
- [CVE-2002-0007](https://insights.sbomify.com/CVE-2002-0007/): Auth bypass in n/a (critical 10.0)
- [CVE-2018-5123](https://insights.sbomify.com/CVE-2018-5123/): Cross-site request forgery in Bugzilla (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-2978 and fix it if it is affected.

What it is: CVE-2011-2978 is a medium-severity vulnerability in Mozilla Bugzilla, published on 9 Aug 2011. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2011-2978 in the wild and no public exploit code.

Affected product: Mozilla Bugzilla. 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-2011-2978/ (Markdown: https://insights.sbomify.com/CVE-2011-2978/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-2978
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-2978
- OSV: https://osv.dev/vulnerability/CVE-2011-2978

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From sbomify Insights: https://insights.sbomify.com/CVE-2011-2978/
Summaries are generated and may contain mistakes; the official description above is the record.