CVE-2020-13300

mediumpriority · track · 40OT risk · elevatedEPSS 0.013 · 69 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.26% (69th) EPSS

CVSS 6.4 · medium

Is it mine?

11 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-26

GitLab CE/EE version 13.3 prior to 13.3.4 was vulnerable to an OAuth authorization scope change without user consent in the middle of the authorization flow.

cvss

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

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.4–10

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 5.8

v3.18highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Nsecondary · ENISA EU

v3.18highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Nsecondary · cve@gitlab.comexploitability 1.6 · impact 5.8

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimary

affected products (11)

Products and version ranges known to be affected.

Open Source GitLab <13.1.10all versionscert_bundDE
Open Source GitLab <13.2.8all versionscert_bundDE
Open Source GitLab <13.3.4all versionscert_bundDE
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source GitLab< 13.1.10cert_bundDE
Open Source GitLab< 13.2.8cert_bundDE
Open Source GitLab< 13.3.4cert_bundDE
GitLab GitLab13.3, → 13.3.4enisa_euvdEU
gitlab gitlab13.3.0 → 13.3.4nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab13.3.0 → 13.3.4osvUSpkg:bitnami/gitlab

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1087GitLab: Mehrere SchwachstellenDeutsch2020-09-02csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um einen Cross-Site Scripting oder Denial of Service Angriff durchzuführen, Sicherheitsmechanismen zu umgehen, Daten zu manipulieren oder vertrauliche Daten einzusehen.
BIT-gitlab-2020-133002024-03-06vendor · osvUS
GitLab CE/EE version 13.3 prior to 13.3.4 was vulnerable to an OAuth authorization scope change without user consent in the middle of the authorization flow.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2020-09-14modified 2026-06-17

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+4992 more

references (11)

External citations — patches, advisories, analysis.

scry

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