Simplemde
CVE-2018-19057
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
1Blast Radius
ecosystem impact- 465 npm packages depend on simplemde (202 direct, 263 indirect)
Ecosystem-wide dependent count for version 1.11.2.
DescriptionNVD
SimpleMDE 1.11.2 has XSS via an onerror attribute of a crafted IMG element, or via certain input with [ and ( characters, which is mishandled during construction of an A element.
AnalysisAI
SimpleMDE 1.11.2 has XSS via an onerror attribute of a crafted IMG element, or via certain input with [ and ( characters, which is mishandled during construction of an A element. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. SimpleMDE 1.11.2 has XSS via an onerror attribute of a crafted IMG element, or via certain input with [ and ( characters, which is mishandled during construction of an A element. Affected products include: Sparksuite Simplemde.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Same weakness CWE-79 – Cross-site Scripting (XSS)
View allShare
External POC / Exploit Code
Leaving vuln.today