KDE KMail up to 19.12.2 mailto?attach information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in KDE KMail up to 19.12.2. It has been rated as problematic. Affected by this vulnerability is an unknown functionality. Performing a manipulation of the argument mailto?attach as part of Email Message results in information disclosure. This vulnerability is reported as CVE-2020-11880. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in KDE KMail up to 19.12.2 (Mail Client Software). It has been classified as problematic. This affects an unknown function. The manipulation of the argument mailto?attach as part of a Email Message leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

An issue was discovered in KDE KMail before 19.12.3. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make KMail attach local files to a composed email message without showing a warning to the user, as demonstrated by an attach=.bash_history value.

The weakness was disclosed 04/17/2020. This vulnerability is uniquely identified as CVE-2020-11880 since 04/17/2020. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 261431 (Ubuntu 18.04 LTS / 20.04 LTS : KMail vulnerabilities (USN-7731-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 19.12.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (261431). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 261431
Nessus Name: Ubuntu 18.04 LTS / 20.04 LTS : KMail vulnerabilities (USN-7731-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: KMail 19.12.3
Patch: cgit.kde.org

Timelineinfo

04/17/2020 🔍
04/17/2020 +0 days 🔍
04/18/2020 +1 days 🔍
09/08/2025 +1969 days 🔍

Sourcesinfo

Vendor: kde.org

Advisory: cgit.kde.org
Status: Confirmed

CVE: CVE-2020-11880 (🔍)
GCVE (CVE): GCVE-0-2020-11880
GCVE (VulDB): GCVE-100-154077

Entryinfo

Created: 04/18/2020 09:08
Updated: 09/08/2025 05:52
Changes: 04/18/2020 09:08 (38), 04/18/2020 09:13 (18), 05/31/2024 15:52 (19), 09/08/2025 05:52 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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