User is allowed to set an email as a notification email even without verifying the new email in all previous GitLab CE/EE versions through…

published 2020-06-19 6 y ago modified 2026-09-10 59 d ago also BIT-gitlab-2020-13276 , EUVD-2020-5537

cvss: 7.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits: 0; none known

User is allowed to set an email as a notification email even without verifying the new email in all previous GitLab CE/EE versions through 13.0.1

Patch / fix

fixed in 3

bitnami gitlab 12.9.8, 12.10.7, 13.0.1
gitlab gitlab 12.9.8, 12.10.7, 13.0.1
gitlab gitlab_enterprise 12.9.8, 12.10.7, 13.0.1

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
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	7.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Affected packages

ecosystem	package	affected	fixed in
bitnami	gitlab	<12.9.8 >=12.10.0, <12.10.7 >=13.0.0, <13.0.1	12.9.8 12.10.7 13.0.1

Affected products

GitLab GitLab

Classification

Weakness

CWE-862 Missing Authorization

Technology feeds

GitLab rss critical rss

References

gitlab.com /gitlab-org/cves/-/blob/master/2020/CVE-2020-13276.json
vendor-advisory, advisory
gitlab.com /gitlab-org/gitlab/-/issues/25994
broken-link, web
hackerone.com /reports/471907
permissions-required, web
nvd.nist.gov /vuln/detail/CVE-2020-13276
web

Sources

Fencer Vulns 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.

Summary