CVE-2023-4105

mediumpriority · track · 17OT risk · elevatedEPSS 0.004 · 34 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.40% (34th) EPSS

CVSS 4.3 · medium

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

Mattermost fails to delete the attachments when deleting a message in a thread allowing a simple user to still be able to access and download the attachment of a deleted message

cvss

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

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.1–4.3

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.13.1lowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.13.1lowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · responsibledisclosure@mattermost.comexploitability 1.6 · impact 1.4

v3.13.1lowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · OSV

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:L/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-862USprimaryCWE-284USCWE-862US

affected products (12)

Products and version ranges known to be affected.

Mattermost Mattermost≤ 0 ≤7.8.7enisa_euvdEU
Mattermost Mattermost≤ 0 ≤7.10.3enisa_euvdEU
Mattermost Mattermost≤ 0 ≤7.9.5enisa_euvdEU
Mattermost Mattermost< 7.10.4enisa_euvdEU
Mattermost Mattermost< 7.8.8enisa_euvdEU
Mattermost Mattermost< 7.9.6enisa_euvdEU
mattermost mattermost7.10.0 → 7.10.4nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
mattermost mattermost7.8.0 → 7.8.8nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
mattermost mattermost7.9.0 → 7.9.6nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
Go github.com/mattermost/mattermost-server/v6< 7.8.8osvUSpkg:golang/github.com/mattermost/mattermost-server/v6
Go github.com/mattermost/mattermost-server/v67.10.0 → 7.10.4osvUSpkg:golang/github.com/mattermost/mattermost-server/v6
Go github.com/mattermost/mattermost-server/v67.9.0 → 7.9.6osvUSpkg:golang/github.com/mattermost/mattermost-server/v6

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1739Mattermost: Mehrere SchwachstellenDeutsch2023-07-12csaf · cert_bundDE
Ein Angreifer kann eine Schwachstelle in Mattermost ausnutzen, um Informationen offenzulegen, Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren und einen Denial of Service zu verursachen.
GHSA-g3v6-r8p9-wxg9Mattermost fails to correctly delete attachments2023-08-11ghsa · osvUS
Mattermost fails to delete the attachments when deleting a message in a thread allowing a simple user to still be able to access and download the attachment of a deleted message

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 2023-08-11modified 2026-06-17

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+11510 more

references (4)

External citations — patches, advisories, analysis.

scry

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