CVE-2020-12641Known exploitationPublic exploitNetwork attack vector

Remote code execution via unescaped image-tool paths

Published May 4, 2020 · Updated Oct 21, 2025

OS command injection in Roundcube Webmail before 1.4.4 allows remote attackers to execute commands through crafted image-tool settings. rcube_image.php passes im_convert_path or im_identify_path into rcube::exec without escaping shell metacharacters, so a stored setting becomes executable command text. Exploitation requires public access to the installer and triggers when a user opens a message containing an image that invokes conversion.

CVSS severity9.8
Critical
EPSS probability84.39%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Roundcube Webmail before 1.4.4 allows remote attackers to execute commands through crafted image-tool settings. rcube_image.php passes im_convert_path or im_identify_path into rcube::exec without escaping shell metacharacters, so a stored setting becomes executable command text. Exploitation requires public access to the installer and triggers when a user opens a message containing an image that invokes conversion.

The record

CVE
CVE-2020-12641
Published
May 4, 2020
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 4, 2020CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 20261
Sep 23, 20261
Sep 24, 20263
Sep 25, 20262
Sep 26, 20262
Sep 27, 20261
Sep 28, 20261
Latest reporting daySep 28, 2026
Latest daily unique IPs1
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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