CVE-2023-2788

mediumpriority · track · 26OT risk · elevatedEPSS 0.005 · 43 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.50% (43rd) EPSS

CVSS 6.5 · medium

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

Mattermost fails to check if an admin user account active after an oauth2 flow is started, allowing an attacker with admin privileges to retain persistent access to Mattermost by obtaining an oauth2 access token while the attacker's account is deactivated.

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 1.2 · impact 5.2

v3.16.2mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Lsecondary · ENISA EU

v3.16.2mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Lsecondary · responsibledisclosure@mattermost.comexploitability 0.7 · impact 5.5

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-613USprimaryCWE-862US

affected products (8)

Products and version ranges known to be affected.

Mattermost Mattermost≤ 0 ≤7.1.9enisa_euvdEU
Mattermost Mattermost≤ 0 ≤7.9.3enisa_euvdEU
Mattermost Mattermost≤ 7.10.0enisa_euvdEU
Mattermost Mattermost≤ 0 ≤7.8.4enisa_euvdEU
mattermost mattermost7.1.0 → 7.1.9nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
mattermost mattermost= 7.10.0nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
mattermost mattermost7.8.0 → 7.8.4nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
mattermost mattermost7.9.0 → 7.9.3nvdUScpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2023-06-16modified 2026-06-17

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+728 more

references (4)

External citations — patches, advisories, analysis.

scry

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