# CVE-2021-21009: Server-side request forgery (SSRF) in Campaign Classic could lead to sensitive information disclosure

> Attackers can exploit SSRF in Adobe Campaign to issue unauthorized requests, potentially disclosing sensitive internal or external information.

- **Severity:** High 8.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Jan 2021
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-63w7-2rqx-q97m

## What is CVE-2021-21009?

CVE-2021-21009 is a high-severity server-side request forgery vulnerability in Adobe Campaign, published on 13 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Adobe Campaign Classic Gold Standard 10 (and earlier), 20.3.1 (and earlier), 20.2.3 (and earlier), 20.1.3 (and earlier), 19.2.3 (and earlier) and 19.1.7 (and earlier) are affected by a server-side request forgery (SSRF) vulnerability. Successful exploitation could allow an attacker to use the Campaign instance to issue unauthorized requests to internal or external resources.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2021-21009?

It affects 1 product.


Products: Adobe Campaign.

## How do I fix CVE-2021-21009?

No fix has been published for CVE-2021-21009 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-21009 being exploited?

There is no known exploitation of CVE-2021-21009 in the wild and no public exploit code.

## Other vulnerabilities in Adobe Campaign

- [CVE-2026-73369](https://insights.sbomify.com/CVE-2026-73369/): Adobe Campaign Classic (ACC) | Improper Control of Generation of Code ('Code Injection') (CWE-94) (critical 10.0)
- [CVE-2026-75699](https://insights.sbomify.com/CVE-2026-75699/): Adobe Campaign Classic (ACC) | Improper Control of Generation of Code ('Code Injection') (CWE-94) (critical 10.0)
- [CVE-2026-75703](https://insights.sbomify.com/CVE-2026-75703/): Adobe Campaign Classic (ACC) | Improper Control of Generation of Code ('Code Injection') (CWE-94) (critical 10.0)
- [CVE-2026-75721](https://insights.sbomify.com/CVE-2026-75721/): Adobe Campaign Classic (ACC) | Improper Control of Generation of Code ('Code Injection') (CWE-94) (critical 10.0)
- [CVE-2026-75723](https://insights.sbomify.com/CVE-2026-75723/): Adobe Campaign Classic (ACC) | Incorrect Authorization (CWE-863) (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-21009 and fix it if it is affected.

What it is: CVE-2021-21009 is a high-severity server-side request forgery vulnerability in Adobe Campaign, published on 13 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-21009 in the wild and no public exploit code.

Affected product: Adobe Campaign. 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-2021-21009/ (Markdown: https://insights.sbomify.com/CVE-2021-21009/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-21009
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-21009
- OSV: https://osv.dev/vulnerability/CVE-2021-21009

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-21009/
Summaries are generated and may contain mistakes; the official description above is the record.