Vulnerability · Published Jun 19, 2020 · Assigned by GitLab

CVE-2020-13262

Medium 6.1

In plain English

A medium-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 0.9% (higher than 59% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.9%top 41.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Client-Side code injection through Mermaid markup in GitLab CE/EE 12.9 and later through 13.0.1 allows a specially crafted Mermaid payload to PUT requests on behalf of other users via clicking on a link

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	>=12.9, <12.9.8>=12.10, <12.10.7>=13.0, <13.0.1

References

https://gitlab.com/gitlab-org/gitlab/-/issues/211949 x_refsource_MISC
https://hackerone.com/reports/824689 x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13262.json x_refsource_CONFIRM