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No exploitation reportedFix available

CVE-2020-11880

No exploitation reported by the sources we read.

  • Published2020-04-17
  • Fixed in19.12.3

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2020-04-1718:15CVE publishedNVD

Versions per branch

NVD
Kde kmail
BranchAffectedFixed in
19.12< 19.12.319.12.3

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • kdepimUbuntu:Pro:16.04:LTSall versions · fixed in 4:15.12.3-0ubuntu1.1+esm1
  • kdepimUbuntu:Pro:14.04:LTSall versions · fixed in 4:4.13.3-0ubuntu0.2+esm1
  • kmailUbuntu:Pro:20.04:LTSall versions · fixed in 4:19.12.3-0ubuntu1+esm1
  • kmailUbuntu:Pro:18.04:LTSall versions · fixed in 4:17.12.3-0ubuntu1+esm1
  • kmailDebian:14all versions · fixed in 4:20.04.1-1
  • kmailDebian:13all versions · fixed in 4:20.04.1-1
  • kmailDebian:12all versions · fixed in 4:20.04.1-1

Full record on NVD

Fix

  1. Update Kde kmail to 19.12.3

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Published
2020-04-17
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-76gc-v974-87g9

Frequently asked questions

What is CVE-2020-11880?

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.

Is CVE-2020-11880 actively exploited?

Active exploitation of CVE-2020-11880 has not been confirmed. Its EPSS score was 0.9% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-11880?

CVE-2020-11880 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

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