CVE-2023-33184

mediumpriority · track · 21EPSS 0.005 · 45 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.53% (45th) EPSS

CVSS 5.3 · medium

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Nextcloud Mail is a mail app in Nextcloud. A blind SSRF attack allowed to send GET requests to services running in the same web server. It is recommended that the Mail app is update to version 3.02, 2.2.5 or 1.15.3.

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–5.3

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.13.5lowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.13.5lowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:Nsecondary · security-advisories@github.comexploitability 2.1 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-918USprimary

affected products (6)

Products and version ranges known to be affected.

nextcloud security-advisories≤ < 1.15.3enisa_euvdEU
nextcloud security-advisories≤ < 3.02enisa_euvdEU
nextcloud security-advisories≤ < 2.2.5enisa_euvdEU
nextcloud mail1.13.0 → 1.15.3nvdUScpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*
nextcloud mail2.2.0 → 2.2.5nvdUScpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*
nextcloud mail2.3.0 → 3.0.2nvdUScpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2023-05-27modified 2026-06-17

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+4181 more

references (10)

External citations — patches, advisories, analysis.

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