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CVE-2020-13311

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was...

4.3 MediumFix available

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was vulnerable to a parser attack that prohibits anyone from accessing the Wiki functionality through the user interface.

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
None
Integrity
None
Availability
Low

Exploit likelihood

1.51%Up 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 4.3

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was vulnerable to a parser attack that prohibits anyone from accessing the Wiki functionality through the user interface.

Record
CVE-2020-13311
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
EUVDEUVD-2020-5571 4.3

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was vulnerable to a parser attack that prohibits anyone from accessing the Wiki functionality through the user interface.

Record
EUVD-2020-5571
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-03
GitHub AdvisoriesGHSA-xg8m-gfp3-4fv6 No score

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was...

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was vulnerable to a parser attack that prohibits anyone from accessing the Wiki functionality through the user interface.

Record
GHSA-xg8m-gfp3-4fv6
Weakness
CWE-74
Updated
2026-11-02
NVD 4.3

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was vulnerable to a parser attack that prohibits anyone from accessing the Wiki functionality through the user interface.

Record
CVE-2020-13311
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:N/I:N/A:P
Weakness
CWE-706
Updated
2026-11-02
OSV 4.3

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was vulnerable to a parser attack that prohibits anyone from accessing the Wiki functionality through the user interface.

Record
CVE-2020-13311
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2020-13311 4.3

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was vulnerable to a parser attack that prohibits anyone from accessing the Wiki functionality through the user interface.

Record
UBUNTU-CVE-2020-13311
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVBIT-gitlab-2020-13311 No score

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Wiki was vulnerable to a parser attack that prohibits anyone from accessing the Wiki functionality through the user interface.

Record
BIT-gitlab-2020-13311
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
gitlab
Bitnami
 1.0.0 up to 13.1.10, 13.2.0 up to 13.2.8, 13.3.0 up to 13.3.4
13.1.1013.2.813.3.4
gitlab
Ubuntu:16.04:LTS
 All versions, plus listed versions
8.4.3+dfsg-98.4.3+dfsg-128.5.8+dfsg-5
 None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-13311 is a medium vulnerability (CVSS 4.3) in Gitlab, published September 14, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.51%, the 74th percentile. Fixed in gitlab 13.1.10.

References

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