PT-2026-83397 · Unknown · Newsletters

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CVE-2026-17520

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Published

2026-08-29

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Updated

2026-08-30

CVSS v3.1

4.8

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Name of the Vulnerable Software and Affected Versions Newsletters versions prior to 4.17
Description When the optional API is enabled, the software fails to generate its API key using a sufficiently random source, instead deriving it from a publicly known value. This allows unauthenticated attackers to compute the key and perform privileged actions, including sending emails and adding or deleting subscribers.
Recommendations Update to version 4.17 or later.

Exploit

Fix

Inadequate Encryption Strength

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Weakness Enumeration

Related Identifiers

CVE-2026-17520

Affected Products

Newsletters