WordPress Polylang and Polylang Pro plugins <= 3.8.5 - Sensitive Data Exposure vulnerability

published 2026-07-23 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-48223

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

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.

Patch / fix

fixed in 2

Chouby Polylang 3.8.6
Chouby Polylang Pro 3.8.6

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-23)

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

Chouby Polylang
Chouby Polylang Pro

Classification

Weakness

CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/polylang/vulnerability/wordpress-polylang-plugin-3-8-5-sensitive-data-exposure-vuln
vdb-entry

Sources

CVE List CVE-2026-65458
NVD CVE-2026-65458

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary