# CVE-2021-36760: Cross-site scripting in n/a

> Attacker can execute arbitrary JavaScript via DOM-based XSS in the password recovery endpoint, potentially leading to session hijacking or data theft.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **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:** No
- **Published:** 7 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-pgw2-c4q3-g5cf

## What is CVE-2021-36760?

CVE-2021-36760 is a medium-severity cross-site scripting vulnerability in Wso2 Api Manager, published on 7 Dec 2021. 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

In accountrecoveryendpoint/recoverpassword.do in WSO2 Identity Server 5.7.0, it is possible to perform a DOM-Based XSS attack affecting the callback parameter modifying the URL that precedes the callback parameter. Once the username or password reset procedure is completed, the JavaScript code will be executed. (recoverpassword.do also has an open redirect issue for a similar reason.)

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2021-36760?

It affects 4 products.


Products: Wso2 Api Manager, Wso2 Identity Server, Wso2 Identity Server as Key Manager, Wso2 Iot Server.

## How do I fix CVE-2021-36760?

No fix has been published for CVE-2021-36760 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-36760 being exploited?

There is no known exploitation of CVE-2021-36760 in the wild and no public exploit code.

## Other vulnerabilities in Wso2 Api Manager

- [CVE-2022-29464](https://insights.sbomify.com/CVE-2022-29464/): WSO2 Multiple Products Unrestrictive Upload of File (critical 9.8, exploited in the wild)
- [CVE-2024-6914](https://insights.sbomify.com/CVE-2024-6914/): Incorrect Authorization in Multiple WSO2 Products via Account Recovery SOAP Admin Service Leading to Account Takeover (critical 9.8)
- [CVE-2020-13226](https://insights.sbomify.com/CVE-2020-13226/): WSO2 API Manager vulnerable to SSRF (critical 9.8)
- [CVE-2025-2905](https://insights.sbomify.com/CVE-2025-2905/): An XML External Entity (XXE) vulnerability in Multiple WSO2 Products (critical 9.1)
- [CVE-2021-42646](https://insights.sbomify.com/CVE-2021-42646/): XML external entity in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-36760 and fix it if it is affected.

What it is: CVE-2021-36760 is a medium-severity cross-site scripting vulnerability in Wso2 Api Manager, published on 7 Dec 2021. 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-2021-36760 in the wild and no public exploit code.

Affected product: Wso2 Api Manager. 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-2021-36760/ (Markdown: https://insights.sbomify.com/CVE-2021-36760/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-36760
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-36760
- OSV: https://osv.dev/vulnerability/CVE-2021-36760

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-36760/
Summaries are generated and may contain mistakes; the official description above is the record.