CVE-2018-20583 is a cross-site scripting (XSS) vulnerability affecting PHP League CommonMark library versions 0.15.6 through 0.18.0. This flaw allows remote attackers to inject unsafe URLs into HTML, even when the 'allow_unsafe_links' setting is disabled, by using a newline character within the URL. The vulnerability has a CVSS score of 6.1 (Medium), indicating it can be exploited over the network with low complexity, requiring user interaction, and potentially leading to low confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.15.6, <= 0.18.0CPE matchmatch criteria | cpe:2.3:a:thephpleague:commonmark:*:*:*:*:*:*:*:* |
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.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.