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Fencer Vulns
medium 4.3

CVE-2016-11081 json

Mattermost Server exposes information stored by a web browser

published 2020-06-19 6 y ago modified 2026-06-17 4 mo ago also GHSA-5q37-9874-qxcw , GO-2025-4062 , EUVD-2016-2070

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

An issue was discovered in Mattermost Server before 2.2.0. It allows unintended access to information stored by a web browser.

Patch / fix

  • go github.com/mattermost/mattermost-server 2.2.0, 2.2.0+incompatible
  • mattermost mattermost_server 2.2.0
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20251105T184115-1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2025:15710-1

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N
GitHub 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/mattermost/mattermost-server
<2.2.0
<2.2.0+incompatible
2.2.0
2.2.0+incompatible

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.