Simplemde · Simplemde · CVE-2018-19057
**Name of the Vulnerable Software and Affected Versions**
SimpleMDE version 1.11.2
**Description**
The issue concerns a mishandling of certain input characters, specifically `[` and `(`, during the construction of an `A` element, and an `onerror` attribute of a crafted `IMG` element. This can lead to XSS.
**Recommendations**
For SimpleMDE version 1.11.2, consider disabling the handling of `[` and `(` characters in input until a patch is available. Restrict access to the `A` element construction and `IMG` element handling to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.