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Fencer Intel
medium 4.3

CVE-2020-13335 json

Improper group membership validation when deleting a user account in GitLab >=7.12 allows a user to delete own account without deleting/tra…

published 6y ago modified 2mo ago also BIT-gitlab-2020-13335 , EUVD-2020-5595

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

Improper group membership validation when deleting a user account in GitLab >=7.12 allows a user to delete own account without deleting/transferring their group.

Patch / fix

  • bitnami gitlab 13.2.10, 13.3.7, 13.4.2
  • gitlab gitlab 13.2.10, 13.3.7, 13.4.2
  • gitlab gitlab_enterprise 13.2.10, 13.3.7, 13.4.2

Is CVE-2020-13335 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:P/A:N
OSV 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami gitlab
>=7.12.0, <13.2.10
>=13.3.0, <13.3.7
>=13.4.0, <13.4.2
13.2.10
13.3.7
13.4.2

Affected products

  • GitLab GitLab

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Enhance with deb and rpm package type records.