CVE-2018-5751

mediumpriority · track · 39EPSS 0.089 · 95 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

8.94% (95th) EPSS

CVSS 4 · medium

Is it mine?

7 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

The backend component in Open-Xchange OX App Suite before 7.6.3-rev36, 7.8.x before 7.8.2-rev39, 7.8.3 before 7.8.3-rev44, and 7.8.4 before 7.8.4-rev22 allows remote authenticated users to obtain sensitive information about external guest users via vectors related to the "groups" and "users" APIs.

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

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.06mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-44881OX App Suite 7.8.4 - Multiple VulnerabilitiesPoC · exploit_db

affected products (7)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
open-xchange open-xchange appsuite≤ 7.6.3nvdUScpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*
open-xchange open-xchange appsuite= 7.6.3nvdUScpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*
open-xchange open-xchange appsuite= 7.8.0nvdUScpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*
open-xchange open-xchange appsuite= 7.8.2nvdUScpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*
open-xchange open-xchange appsuite= 7.8.3nvdUScpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*
open-xchange open-xchange appsuite= 7.8.4nvdUScpe:2.3:a:open-xchange:open-xchange_appsuite:*:*:*:*:*:*:*:*

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 2018-06-16modified 2026-06-17

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+19474 more

references (10)

External citations — patches, advisories, analysis.

scry

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