Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-90989
Unknown Tainacan — Tainacan < 1.4.0 - Subscriber+ Repository Staff Email Address Disclosure via Reports REST Endpoints
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L L N U L N N 4.3 .0023 13.1 —
AFFECTED
Product Versions Fixed
Tainacan unspecified —
TIMELINE
Sep 14 Reserved by WPScan
Oct 14 EXPLOIT PUBLISHED — CVE-2026-90989 (Unknown Tainacan). Public exploit reference added.
Oct 14 Published (CNA: WPScan)
Oct 15 EXPLOIT PUBLISHED — CVE-2026-90989 (Unknown Tainacan). Public exploit reference added.
Description
The Tainacan WordPress plugin before 1.4.0 does not restrict its reports REST endpoints to users with a management capability, allowing any authenticated subscriber to read the email addresses of the repository's staff.
Lifecycle
Complete event history — 4 events, chronological
| Date | Event | Detail |
|---|
| September 14, 2026 | Reserved | Reserved by WPScan |
| October 14, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-90989 (Unknown Tainacan). Public exploit reference added. |
| October 14, 2026 | Published | Published (CNA: WPScan) |
| October 15, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-90989 (Unknown Tainacan). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Unknown | Tainacan | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-90989 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 Monday, October 19, 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.
