CVE-2026-48591

CVE-2026-48591 describes a stored cross-site scripting vulnerability in the open-source earmark Markdown library used with Elixir. The issue arises from how Elixir.Earmark.Transform:_make_att1/2 splices attribute values directly between two literal quotes, causing attribute values to be emitted v...

Duplicate Advisory: ProsemirrorToHtml has a Cross-Site Scripting (XSS) vulnerability through unescaped HTML attribute values

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-52c5-vh7f-26fx. This link is maintained to preserve external references. Original Description Impact The prosemirrortohtml gem is vulnerable to Cross-Site Scripting XSS attacks through malicious HTML attribute...

CVE-2025-64501: Improper Neutralization of Input During Web Page Generation

ProsemirrorToHtml is a JSON converter which takes ProseMirror-compatible JSON and outputs HTML. In versions 0.2.0 and below, the prosemirrortohtml gem is vulnerable to Cross-Site Scripting XSS attacks through malicious HTML attribute values. While tag content is properly escaped, attribute values...

GHSA-52C5-VH7F-26FX Cross-Site Scripting (XSS) vulnerability through unescaped HTML attribute values

Impact The prosemirrortohtml gem is vulnerable to Cross-Site Scripting XSS attacks through malicious HTML attribute values. While tag content is properly escaped, attribute values are not, allowing attackers to inject arbitrary JavaScript code. Who is impacted: - Any application using...