CVEvulnerability
CVE-2018-20583
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2018-12-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 6.1 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-79
Description
Cross-site scripting (XSS) vulnerability in the PHP League CommonMark library versions 0.15.6 through 0.18.x before 0.18.1 allows remote attackers to insert unsafe URLs into HTML (even if allow_unsafe_links is false) via a newline character (e.g., writing javascript as javascri%0apt).
Affected configurations
• thephpleague commonmark (>= 0.15.6 <= 0.18.0)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://commonmark.thephpleague.com/changelog/ Release Notes, Third Party Advisory
- https://github.com/thephpleague/commonmark/issues/337 Exploit, Third Party Advisory
- https://github.com/thephpleague/commonmark/releases/tag/0.18.1 Release Notes, Third Party Advisory
- https://commonmark.thephpleague.com/changelog/ Release Notes, Third Party Advisory
- https://github.com/thephpleague/commonmark/issues/337 Exploit, Third Party Advisory
- https://github.com/thephpleague/commonmark/releases/tag/0.18.1 Release Notes, Third Party Advisory