CVE-2020-13303
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to...
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
- Record
CVE-2020-13303- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N - Updated
- 2026-11-02
EUVDEUVD-2020-5563
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
- Record
EUVD-2020-5563- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jqf5-5c3v-wj97 No score
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to...
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
- Record
GHSA-jqf5-5c3v-wj97- Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
- Record
CVE-2020-13303- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
OSV
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
- Record
CVE-2020-13303- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-13303
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
- Record
UBUNTU-CVE-2020-13303- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N - Updated
- 2026-11-02
OSVBIT-gitlab-2020-13303 No score
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.
- Record
BIT-gitlab-2020-13303- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-13303 is a high vulnerability (CVSS 7.1) in Gitlab, published September 15, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.35%, the 71st percentile. Fixed in gitlab 13.1.10.
References
gitlab.com/gitlab-org/gitlab/-/issues/238887
hackerone.com/reports/962231
nvd.nist.gov/vuln/detail/CVE-2020-13303
github.com/advisories/GHSA-jqf5-5c3v-wj97
ubuntu.com/security/CVE-2020-13303
about.gitlab.com/releases/2020/09/02/security-release-gitlab-13-3-3-released
cve.org/CVERecord?id=CVE-2020-13303