Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N H N N U N L L 4.8 .0012 1.7 —
AFFECTED Product Versions Fixed Newsletters unspecified —
TIMELINE Jul 27 Reserved by WPScan Aug 29 Published (CNA: WPScan) Aug 30 EXPLOIT PUBLISHED — CVE-2026-17520 (Unknown Newsletters). Public exploit reference added.
The Newsletters WordPress plugin before 4.17 does not generate its API key using a sufficiently random source, deriving it from a publicly known value, allowing unauthenticated attackers to compute the key and perform privileged actions such as adding and deleting subscribers and sending emails, when the optional API has been enabled.
| Date | Event | Detail |
|---|---|---|
| July 27, 2026 | Reserved | Reserved by WPScan |
| August 29, 2026 | Published | Published (CNA: WPScan) |
| August 30, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-17520 (Unknown Newsletters). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| Unknown | Newsletters | — | — | — |
Authoritative record: CVE-2026-17520 at cve.org
Weaknesses: CWE-326
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-17520 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
