# CVE-2019-6636: Cross-site scripting in BIG-IP (AFM, ASM)

> Stored XSS in F5 BIG-IP AFM feed lists allows attackers to execute code as admin via CSRF, requiring resource admin or admin privileges.

- **Severity:** High 8.4 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H`)
- **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:** No
- **Published:** 3 Jul 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-pvp5-prvr-295p

## What is CVE-2019-6636?

CVE-2019-6636 is a high-severity cross-site scripting vulnerability in F5 Big-Ip Advanced Firewall Manager, published on 3 Jul 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

On BIG-IP (AFM, ASM) 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4, and 11.5.1-11.6.4, a stored cross-site scripting vulnerability in AFM feed list. In the worst case, an attacker can store a CSRF which results in code execution as the admin user. The level of user role which can perform this attack are resource administrator and administrator.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2019-6636?

It affects 2 products.


Products: F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Application Security Manager.

## How do I fix CVE-2019-6636?

No fix has been published for CVE-2019-6636 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-6636 being exploited?

There is no known exploitation of CVE-2019-6636 in the wild and no public exploit code.

## Other vulnerabilities in F5 Big-Ip Advanced Firewall Manager

- [CVE-2021-23040](https://insights.sbomify.com/CVE-2021-23040/): SQL injection in BIG-IP AFM (high 8.8)
- [CVE-2025-59478](https://insights.sbomify.com/CVE-2025-59478/): BIG-IP AFM DoS protection profile vulnerability (high 8.7)
- [CVE-2025-24312](https://insights.sbomify.com/CVE-2025-24312/): BIG-IP AFM vulnerability (high 8.7)
- [CVE-2024-21763](https://insights.sbomify.com/CVE-2024-21763/): BIG-IP AFM vulnerability (high 7.5)
- [CVE-2024-21771](https://insights.sbomify.com/CVE-2024-21771/): F5 AFM Signature Matching Vulnerability (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-6636 and fix it if it is affected.

What it is: CVE-2019-6636 is a high-severity cross-site scripting vulnerability in F5 Big-Ip Advanced Firewall Manager, published on 3 Jul 2019. 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 CVE-2019-6636 in the wild and no public exploit code.

Affected product: F5 Big-Ip Advanced Firewall 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-2019-6636/ (Markdown: https://insights.sbomify.com/CVE-2019-6636/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-6636
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-6636
- OSV: https://osv.dev/vulnerability/CVE-2019-6636

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-6636/
Summaries are generated and may contain mistakes; the official description above is the record.