CVE-2023-4108

highpriority · track · 30EPSS 0.006 · 49 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.60% (49th) EPSS
CVSS 7.5 · high
Is it mine?
11 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

  • MitigationDEXGatecisa_csaf_ot

    Dexma has not responded to CISA's requests to coordinate at this time.

02

cvss

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

8.0
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.5–8

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.18highCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · CISA US
v3.14.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · ENISA EU
v3.14.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · responsibledisclosure@mattermost.comexploitability 0.9 · impact 3.6
v3.14.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · OSV
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

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

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-532USprimaryCWE-200USCWE-287USCWE-532US
05

affected products (11)

Products and version ranges known to be affected.

06

advisories (3)

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-9rww-66w7-7vjxMattermost fails to sanitize post metadata2023-08-11ghsa · osvUS

    Mattermost fails to sanitize post metadata during audit logging, resulting in permalinks' contents being logged.

  • ICSA-23-271-02DEXMA DexGate2023-09-26icsa · cisa_csaf_otUS

    Successful exploitation of these vulnerabilities could result in the attacker impersonating a user, executing arbitrary code, and accessing the connected network.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otnvdosvcert_bundNVDCVE.orgMITRE
published 2023-08-11modified 2026-06-17
10

references (4)

External citations — patches, advisories, analysis.

scry

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