CVE-2018-19493 is a persistent Cross-Site Scripting (XSS) vulnerability affecting GitLab Community and Enterprise Editions versions 11.x before 11.3.11, 11.4.x before 11.4.8, and 11.5.x before 11.5.1. This flaw stems from insufficient input validation and output encoding on environment pages, allowing attackers to inject malicious scripts. Rated Medium severity with a CVSS score of 6.1, it requires user interaction (UI:R) and could lead to low impact on confidentiality and integrity (C:L/I:L) if exploited. There is no evidence of active exploitation, nor are there known public exploits in Metasploit, Nuclei, or ExploitDB, though it has received some community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 11.0.0, < 11.3.11CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | ||
>= 11.0.0, < 11.3.11CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | ||
>= 11.4.0, < 11.4.8CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | ||
>= 11.4.0, < 11.4.8CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | ||
>= 11.5.0, < 11.5.1CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.