CVE-2026-25642 — HedgeDoc security headers for uploaded files were not working
HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to 1.10.6, files served below the /uploads/ endpoint did not use a more strict security-p…
Published: 2026-02-06 · CVSS: 4.3 · CVSS 3.1
HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to 1.10.6, files served below the /uploads/ endpoint did not use a more strict security-policy. This resulted in a too open Content-Security-Policy and furthermore opened the possibility to host malicious interactive web content (such as fake login forms) using SVG files. This vulnerability is fixed in 1.10.6.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7