# CVE-2022-35962: Crafted link in Zulip message can cause disclosure of credentials

> An attacker can disclose user credentials by tricking a Zulip Mobile user into clicking a crafted link in a message.

- **Severity:** High 8.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H`)
- **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:** No
- **Published:** 29 Aug 2022
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-4gj2-j32x-4wg5

## What is CVE-2022-35962?

CVE-2022-35962 is a high-severity vulnerability in zulip-mobile, published on 29 Aug 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Zulip is an open source team chat and Zulip Mobile is an app for iOS and Andriod users. In Zulip Mobile through version 27.189, a crafted link in a message sent by an authenticated user could lead to credential disclosure if a user follows the link. A patch was released in version 27.190.

Weakness: CWE-436 (Interpretation Conflict), CWE-697 (Incorrect Comparison), CWE-184 (Incomplete List of Disallowed Inputs)

## Which versions are affected by CVE-2022-35962?

It affects 1 product.


Products: Zulip Zulip.

## How do I fix CVE-2022-35962?

No fix has been published for CVE-2022-35962 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-35962 being exploited?

There is no known exploitation of CVE-2022-35962 in the wild and no public exploit code.

## Other vulnerabilities in zulip-mobile

- [CVE-2021-43799](https://insights.sbomify.com/CVE-2021-43799/): RabbitMQ exposes ports with weak default secrets in Zulip Server (high 8.6)
- [CVE-2016-4427](https://insights.sbomify.com/CVE-2016-4427/): Auth bypass in zulip (high 7.5)
- [CVE-2021-3866](https://insights.sbomify.com/CVE-2021-3866/): Cross-site Scripting (XSS) - Stored in zulip/zulip (medium 6.8)
- [CVE-2023-28623](https://insights.sbomify.com/CVE-2023-28623/): Unauthorized user can register an account in specific configurations in Zulip (medium 6.5)
- [CVE-2021-43791](https://insights.sbomify.com/CVE-2021-43791/): Ineffective expiration validation for invitation links in Zulip (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-35962 and fix it if it is affected.

What it is: CVE-2022-35962 is a high-severity vulnerability in zulip-mobile, published on 29 Aug 2022. 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-2022-35962 in the wild and no public exploit code.

Affected product: zulip-mobile. 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-2022-35962/ (Markdown: https://insights.sbomify.com/CVE-2022-35962/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-35962
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-35962
- OSV: https://osv.dev/vulnerability/CVE-2022-35962

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-35962/
Summaries are generated and may contain mistakes; the official description above is the record.