Information disclosure in Solace Extra

CVE-2026-16966

The Solace Extra WordPress plugin before 1.7.0 does not perform any authorization or post-status checks in one of its AJAX actions, allowing unauthenticated visitors to read the content of non-published (draft, pending, private, and trashed) Site Builder parts that WordPress would otherwise not serve.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-16966: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Solace Extra

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-16966?
CVE-2026-16966 is a medium-severity vulnerability in Solace Extra, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-09-02.
How severe is CVE-2026-16966?
Medium severity. CVSS v3 base score is 5.3 out of 10.