Vulnerability in Chouby Polylang

CVE-2026-65458

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Chouby Polylang and Chouby Polylang Pro allows Retrieve Embedded Sensitive Data. This issue affects Polylang: through 3.8.5; Polylang Pro: through 3.8.5.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.9% 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-2026-65458: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-65458?
CVE-2026-65458 is a medium-severity vulnerability in Chouby Polylang, classified under Exposure of Sensitive System Information to an Unauthorized Control Sphere. CVSS score: 4.3/10. Published 2026-07-23.
How severe is CVE-2026-65458?
Medium severity. CVSS v3 base score is 4.3 out of 10.