Unknown Fast Courier vulnerabilities

2 CVEs affecting Unknown Fast Courier, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-89288, published 2026-10-14.

More from Unknown.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-89288, published 2026-10-14. High severity, CVSS 8.6. EPSS: 0.3% chance of exploitation in the next 30 days. The Fast Courier WordPress plugin before 5.2.4 does not sanitize and escape a value before using it in a SQL query on an unauthenticated REST route, allowing unauthenticated attackers to perform SQL…
• CVE-2026-89289, published 2026-10-06. Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days. The Fast Courier WordPress plugin through 5.2.3 does not restrict an unauthenticated REST route that writes order fulfillment data, allowing unauthenticated attackers to overwrite the courier status…