CVE-2026-25642

low-risk
Published 2026-02-06

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.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Hedgedoc

Affected Vendors

Hedgedoc

References (4)

Patch https://github.com/hedgedoc/hedgedoc/commit/74daa0e7a1cbfafd9aeb255eaf064dfe47cd...
Patch https://github.com/hedgedoc/hedgedoc/commit/b930fe04cee92cd4723044030bb59c36781c...
Product https://github.com/hedgedoc/hedgedoc/releases/tag/1.10.6
Patch https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-x74j-jmf9-534w
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal