CVE-2023-5193

lowpriority · track · 11OT risk · elevatedEPSS 0.006 · 47 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.57% (47th) EPSS

CVSS 2.7 · low

Is it mine?

9 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Mattermost fails to properly check permissions when retrieving a post allowing for a System Role with the permission to manage channels to read the posts of a DM conversation.

cvss

Technical severity, 0–10. One row per scoring source.

4.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.5–4.9

v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 1.2 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:Nsecondary · responsibledisclosure@mattermost.comexploitability 1.2 · impact 3.6

v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:Nsecondary · OSV

v3.12.5lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimaryCWE-863US

affected products (9)

Products and version ranges known to be affected.

Mattermost Mattermost≤ 0 ≤7.8.9enisa_euvdEU
Mattermost Mattermost≤ 8.1.0enisa_euvdEU
Mattermost Mattermost≤ 0 ≤8.0.1enisa_euvdEU
mattermost mattermost7.0.0 → 7.8.10nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
mattermost mattermost8.0.0 → 8.0.2nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
mattermost mattermost8.1.0 → 8.1.1nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
Go github.com/mattermost/mattermost-server/v6< 7.8.10osvUSpkg:golang/github.com/mattermost/mattermost-server/v6
Go github.com/mattermost/mattermost/server/v88.0.0 → 8.0.2osvUSpkg:golang/github.com/mattermost/mattermost/server/v8
Go github.com/mattermost/mattermost/server/v88.1.0 → 8.1.1osvUSpkg:golang/github.com/mattermost/mattermost/server/v8

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2252Mattermost: Mehrere SchwachstellenDeutsch2023-09-03csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Mattermost ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen oder Sicherheitsvorkehrungen zu umgehen.
GHSA-h8wh-f7gw-fwprMattermost Incorrect Authorization vulnerability2023-09-29ghsa · osvUS
Mattermost fails to properly check permissions when retrieving a post allowing for a System Role with the permission to manage channels to read the posts of a DM conversation.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv cert_bund NVD CVE.org MITRE

published 2023-09-29modified 2026-06-17

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+5006 more

references (5)

External citations — patches, advisories, analysis.

scry

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