---
title: "Roundcube ImageMagick RCE (CVE-2020-12641)"
canonical: https://trickest.com/library/cve-2020-12641-roundcube-imagemagick-rce
description: "Flag Roundcube Webmail hosts for CVE-2020-12641 by reading the version from GET /CHANGELOG. Floor 1.4.4. No ImageMagick write and no RCE."
---

# Roundcube ImageMagick RCE (CVE-2020-12641)

## Overview

This workflow finds Roundcube Webmail and sorts each host by whether its version falls below the CVE-2020-12641 FIXED floor. CVE-2020-12641 is remote code execution through ImageMagick configuration on vulnerable Roundcube builds. This check never writes an ImageMagick policy and never runs a command. Give it hostnames, IP addresses, or URLs you are authorised to test. The workflow GETs `/CHANGELOG`, fingerprints Roundcube from that changelog text, parses the version, and compares it to floor 1.4.4. Every host comes back affected or not, so a fleet advisory becomes an evidenced list for [exposure management](/use-cases/exposure-management). An affected row is a version signal only.

Run it on a schedule when webmail nodes lag just under 1.4.4. A host that stayed on 1.4.3 after the advisory is the reason the same fingerprint stays useful.

## Pipeline

1. Read the target list. Hosts, URLs, or ranges, one per line, become the scope.
2. GET `/CHANGELOG` on each host and fingerprint Roundcube from the changelog body that exposes the product version.
3. Parse the version and compare it to the CVE-2020-12641 floor 1.4.4 in the graph.
4. Collect the per-host rows: product match, version, vulnerable flag, and any fetch error.
5. Emit the summary counts: hosts checked, product hits, vulnerable, and errors.

## Inputs

- **Target scope.** Hostnames, IP addresses, CIDR ranges, or URLs, one per line. Full URLs and host:port entries work too, since the workflow normalizes each into a bare host. Point it at scope you are authorised to test.

## Outputs

- **results.jsonl.** One row per host: URL, whether Roundcube was detected, the version read, the vulnerable flag, and detail text.
- **findings.jsonl.** The same per-host verdict shaped for triage, with severity set from the vulnerable flag.
- **summary.json.** Counts across the list: targets, product hits, vulnerable, and errors, plus the detection notes from the graph.

## Integrations

- HTTP. Unauthenticated GET of `/CHANGELOG` only. No ImageMagick write and no RCE payload.

## Sample output

The records below are illustrative and do not come from a real run. They show one Roundcube host below the CVE-2020-12641 floor, one at or above it, and one host that is not the product.

```jsonl
{"url": "https://webmail.example.com", "is_product": true, "product_version": "1.4.3", "vulnerable": true, "detail": "below fixed release 1.4.4"}
{"url": "https://webmail.example.org", "is_product": true, "product_version": "1.4.4", "vulnerable": false, "detail": "at or above fixed release"}
{"url": "https://shop.example.net", "is_product": false, "product_version": null, "vulnerable": false, "detail": "not identified as Roundcube Webmail"}
```

```json
{"cve": "CVE-2020-12641", "total_targets": 3, "product_detected": 2, "vulnerable": 1, "errors": 0}
```

## FAQ

### Which Roundcube versions does this flag?

Builds below floor 1.4.4, the single FIXED floor coded in the graph. The compare uses the version string `/CHANGELOG` itself served.

### Does an affected row mean ImageMagick RCE worked?

No. The check only GETs `/CHANGELOG` and reads the version. It does not write ImageMagick configuration and it does not confirm RCE.

### Is this check safe on production?

Yes. It is a read-only unauthenticated GET of the public changelog. It does not authenticate or modify configuration.

### Does the check need credentials?

No. It fingerprints the public changelog the way an external scanner would.

### What is CVE-2020-12641?

Remote code execution in Roundcube Webmail through ImageMagick configuration on vulnerable builds. This workflow maps hosts to that CVE by version exposure only.

## Related workflows

- [Roundcube File Disclosure (CVE-2017-16651)](/library/cve-2017-16651-roundcube-file-disclosure). Reach for it when you need the older Roundcube file disclosure fingerprint.
- [Roundcube XML XSS (CVE-2020-13965)](/library/cve-2020-13965-roundcube-xml-attachment-xss). Reach for it when you need the XML attachment XSS check on the same webmail fleet.
- [Roundcube RCE (CVE-2025-49113)](/library/roundcube-rce-check-cve-2025-49113). Reach for it when you need a newer Roundcube RCE check.

---
_Markdown source of https://trickest.com/library/cve-2020-12641-roundcube-imagemagick-rce._