Vulnerability · Published Jan 15, 2021 · Assigned by GitLab

CVE-2021-22171

High 7.3

In plain English

A high-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 72% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)1.3%top 28.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	>=11.5.0, <13.5.6>=13.6.0, <13.6.4>=13.7.0, <13.7.2

References

https://gitlab.com/gitlab-org/gitlab-pages/-/issues/262 x_refsource_MISC
https://hackerone.com/reports/718460 x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22171.json x_refsource_CONFIRM