# CVE-2026-82003: Adobe Campaign Classic (ACC) | Improper Input Validation (CWE-20)

> A low-privileged attacker can execute arbitrary code in Adobe Campaign Classic due to improper input validation, requiring no user interaction.

- **Severity:** High 8.5 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/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:** Not needed
- **Fix available:** No
- **Published:** 22 Sep 2026
- **Updated:** 26 Sep 2026
- **Also known as:** GHSA-3fgx-p55x-rvwv

## What is CVE-2026-82003?

CVE-2026-82003 is a high-severity code injection vulnerability in Adobe Campaign Classic, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Adobe Campaign Classic (ACC) is affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could exploit this vulnerability to execute arbitrary code. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction. Scope is changed.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2026-82003?

It affects 1 product.


Products: Adobe Campaign.

## How do I fix CVE-2026-82003?

No fix has been published for CVE-2026-82003 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-82003 being exploited?

There is no known exploitation of CVE-2026-82003 in the wild and no public exploit code.

## Other vulnerabilities in Adobe Campaign Classic

- [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-2026-82003 and fix it if it is affected.

What it is: CVE-2026-82003 is a high-severity code injection vulnerability in Adobe Campaign Classic, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-82003 in the wild and no public exploit code.

Affected product: Adobe Campaign Classic. 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-2026-82003/ (Markdown: https://insights.sbomify.com/CVE-2026-82003/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-82003
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-82003
- OSV: https://osv.dev/vulnerability/CVE-2026-82003

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-82003/
Summaries are generated and may contain mistakes; the official description above is the record.