# CVE-2026-65458: Chouby Polylang sensitive data exposure

Source: https://junglewise.ai/threats/cve-2026-65458-chouby-polylang-sensitive-data-exposure  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-23. Updated: 2026-07-23  
License: CC BY 4.0 with a link back

CVE-2026-65458 · Severity: medium · CVSS 4.3 · Published 2026-07-23

Polylang is a popular WordPress plugin used to create multilingual websites. A security flaw in versions 3.8.5 and earlier allows users with 'Contributor' level access to view sensitive system information that should normally be restricted. While this does not directly allow for site takeover, the exposed data could be used by an attacker to plan more sophisticated follow-up attacks.

Technologies: [WP SYNTEX Polylang](https://junglewise.ai/threats/technologies/polylang). Vendors: [WP SYNTEX](https://junglewise.ai/threats/vendors/wp-syntex).

## Quick answers

**Is CVE-2026-65458 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-65458 being exploited in the wild.

**How severe is CVE-2026-65458?** Medium severity, with a CVSS score of 4.3, published 23 July 2026.

**Which products and versions are affected?** WP SYNTEX Polylang <= 3.8.5.

**Is there a fix for CVE-2026-65458?** A patch was published on 2026-07-23: Version 3.8.6 released to address the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-65458 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-65458?** Check whether you run WP SYNTEX Polylang at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The Polylang plugin for WordPress is vulnerable to sensitive data exposure (CWE-497) in versions up to and including 3.8.5. This issue stems from improper restriction of sensitive system information within an unauthorized control sphere. An authenticated attacker with Contributor-level permissions can exploit this vulnerability via network requests to view data that is typically restricted to higher-privileged users. The vulnerability is addressed in version 3.8.6.

## Affected products

- Chouby (WP SYNTEX) Polylang <= 3.8.5

## Timeline

- 2026-06-24: disclosed: Reported by Ananda Dhakal via Patchstack
- 2026-07-22: advisory: Patchstack advisory published
- 2026-07-23: patched: Version 3.8.6 released to address the issue

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/polylang/vulnerability/wordpress-polylang-plugin-3-8-5-sensitive-data-exposure-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/polylang/vulnerability/wordpress-polylang-plugin-3-8-5-sensitive-data-exposure-vulnerability?_s_id=cve)

## Related threats

- [WP SYNTEX Polylang broken access control in pages](https://junglewise.ai/threats/cve-2026-122670-missing-authorization-vulnerability-in-wp-syntex-polylang)
- [WP SYNTEX Polylang object injection in deserialization](https://junglewise.ai/threats/cve-2026-97278-deserialization-of-untrusted-data-vulnerability-in-wp-syntex)
- [WP SYNTEX Polylang missing authorization in data retrieval](https://junglewise.ai/threats/cve-2026-39783-missing-authorization-vulnerability-in-wp-syntex-polylang)
- [Polylang stored cross-site scripting in contributor roles](https://junglewise.ai/threats/cve-2026-97279-contributor-cross-site-scripting-xss-in-polylang-3-8-9-versions)