CVE-2025-69206

Hemmelig has SSRF Filter bypass in Secret Request functionality

Hemmelig is a messing app with with client-side encryption and self-destructing messages. Prior to version 7.3.3, a Server-Side Request Forgery (SSRF) filter bypass vulnerability exists in the webhook URL validation of the Secret Requests feature. The application attempts to block internal/private IP addresses but can be bypassed using DNS rebinding or open redirect services. This allows an authenticated user to make the server initiate HTTP requests to internal network resources. Version 7.3.3 contains a patch for the issue.

Affected

HemmeligOrg · Hemmelig.app

CVSS v3.1 GITHUB

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.20% chance of exploitation in the next 30 days, 10th percentile

Published

2025-12-29

Proof-of-concept exploits (1)

• advisories/GHSA-vvxf-wj5w-6gj5

Security advisories

• HemmeligOrg/Hemmelig.app/security/advisories/GHSA-vvxf-wj5w-6gj5
• HemmeligOrg/Hemmelig.app/commit/6c909e571d0797ee3bbd2c72e4eb767b57378228

References

• CVE Record
• NVD entry