WordPress Polylang Plugin <= 3.7.3 is vulnerable to Deserialization of untrusted data<\/p>
Software: Polylang<\/p>
Fixed in version 3.7.4 <\/p>
Affected Version <= 3.7.3<\/p>
CVE: CVE-2025-64353<\/p>","date":"2025-10-28"},{"id":"9048dea12c1fcda28ab9a5c8c12af79993b42a19","name":"Polylang <= 3.7.3 - Authenticated (Contributor+) PHP Object Injection","link":"https:\/\/www.wordfence.com\/threat-intel\/vulnerabilities\/wordpress-plugins\/polylang\/polylang-373-authenticated-contributor-php-object-injection","description":"The Polylang plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.7.3 via deserialization of untrusted input. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.","date":"2025-10-28"},{"id":"EUVD-2025-37339","name":"EUVD-2025-37339","link":"https:\/\/euvd.enisa.europa.eu\/enisa\/EUVD-2025-37339","description":"Deserialization of Untrusted Data vulnerability in Chouby Polylang polylang allows Object Injection.This issue affects Polylang: from n\/a through <= 3.7.3.","date":"2025-10-31"}],"impact":{"cvss":{"version":"3.1","vector":"CVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:N\/S:U\/C:H\/I:H\/A:H","av":"n","ac":"l","pr":"l","ui":"n","s":"u","c":"h","i":"h","a":"h","score":"8.8","severity":"h","exploitable":"2.8","impact":"5.9"},"cvss3":{"version":"3.1","vector":"CVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:N\/S:U\/C:H\/I:H\/A:H","score":"8.8","severity":"high","av":"network","ac":"low","pr":"low","ui":"none","s":"unchanged","c":"high","i":"high","a":"high","exploitable":"2.8","impact":"5.9"},"cwe":[{"cwe":"CWE-502","name":"Deserialization of Untrusted Data","description":"The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid."}],"ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","kev":false,"kev_date":null},"epss":"0.001"}},{"uuid":"fd57c48efd168c45cde0887de931b14b5851cc8e52246a14e40b5cac7f7ab4df","name":"Polylang [polylang] < 3.8.6","description":null,"operator":{"min_version":null,"min_operator":null,"max_version":"3.8.6","max_operator":"lt","unfixed":"0","closed":"0"},"source":[{"id":"CVE-2026-65458","name":"CVE-2026-65458","link":"https:\/\/www.cve.org\/CVERecord?id=CVE-2026-65458","description":"[en] Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Chouby Polylang and Chouby Polylang Pro allows Retrieve Embedded Sensitive Data.\n\nThis issue affects Polylang: through 3.8.5; Polylang Pro: through 3.8.5.","date":"2026-07-23"},{"id":"7cf947cc85fbbda3e734254b9631dfbcea252781","name":"Polylang <= 3.8.5 - Authenticated (Contributor+) Sensitive Information Exposure","link":"https:\/\/www.wordfence.com\/threat-intel\/vulnerabilities\/id\/64bd14de-a201-4532-b980-962feab0d69b","description":"The Polylang plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.8.5. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive user or configuration data.","date":"2026-07-22"},{"id":"1e6fb7dcac44c003a60a7b73bd74cbb2ea59e3a2","name":"Polylang <= 3.8.5 - Authenticated (Contributor+) Sensitive Information Exposure","link":"https:\/\/www.wordfence.com\/threat-intel\/vulnerabilities\/wordpress-plugins\/polylang\/polylang-385-authenticated-contributor-sensitive-information-exposure","description":"The Polylang plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.8.5. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive user or configuration data.","date":"2025-10-28"}],"impact":{"cvss":{"version":"3.1","vector":"CVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:N\/S:U\/C:L\/I:N\/A:N","av":"n","ac":"l","pr":"l","ui":"n","s":"u","c":"l","i":"n","a":"n","score":"4.3","severity":"m","exploitable":"0.0","impact":"0.0"},"cvss3":{"version":"3.1","vector":"CVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:N\/S:U\/C:L\/I:N\/A:N","score":"4.3","severity":"medium","av":"network","ac":"low","pr":"low","ui":"none","s":"unchanged","c":"low","i":"none","a":"none","exploitable":"0.0","impact":"0.0"},"cwe":[{"cwe":"CWE-497","name":"Exposure of Sensitive System Information to an Unauthorized Control Sphere","description":"The product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does."}],"ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","kev":false,"kev_date":null}}},{"uuid":"8aa57705cba6463605dff4f927de7f696baf09ea11706c5d00eac91ac57e5551","name":"Polylang [polylang] < 3.8.10","description":null,"operator":{"min_version":null,"min_operator":null,"max_version":"3.8.10","max_operator":"lt","unfixed":"0","closed":"0"},"source":[{"id":"CVE-2026-97279","name":"CVE-2026-97279","link":"https:\/\/www.cve.org\/CVERecord?id=CVE-2026-97279","description":"[en] Contributor Cross Site Scripting (XSS) in Polylang <= 3.8.9 versions.","date":"2026-09-30"},{"id":"113e532f291e620e2e59a2682470037ccb2b899b","name":"Polylang <= 3.8.9 - Authenticated (Contributor+) Stored Cross-Site Scripting","link":"https:\/\/www.wordfence.com\/threat-intel\/vulnerabilities\/wordpress-plugins\/polylang\/polylang-389-authenticated-contributor-stored-cross-site-scripting","description":"The Polylang plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 3.8.9. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","date":"2026-07-22"}],"impact":{"cvss":{"version":"3.1","vector":"CVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:R\/S:C\/C:L\/I:L\/A:L","av":"n","ac":"l","pr":"l","ui":"r","s":"c","c":"l","i":"l","a":"l","score":"6.5","severity":"m","exploitable":"0.0","impact":"0.0"},"cvss3":{"version":"3.1","vector":"CVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:R\/S:C\/C:L\/I:L\/A:L","score":"6.5","severity":"medium","av":"network","ac":"low","pr":"low","ui":"required","s":"changed","c":"low","i":"low","a":"low","exploitable":"0.0","impact":"0.0"},"cwe":[{"cwe":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","description":"The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users."}]}},{"uuid":"6a077c8a0d8dd8e9d51b249687f8b604764eacffd4e9b33a94a51398d7c8161f","name":"Polylang [polylang] < 3.8.8","description":null,"operator":{"min_version":null,"min_operator":null,"max_version":"3.8.8","max_operator":"lt","unfixed":"0","closed":"0"},"source":[{"id":"CVE-2026-39783","name":"CVE-2026-39783","link":"https:\/\/www.cve.org\/CVERecord?id=CVE-2026-39783","description":"[en] Missing Authorization vulnerability in WP SYNTEX Polylang polylang allows Retrieve Embedded Sensitive Data.This issue affects Polylang: from n\/a through 3.8.7.","date":"2026-10-05"},{"id":"25127244f8bef1af08673613260120b9c4cd3263","name":"Polylang <= 3.8.7 - Authenticated (Contributor+) Information Exposure","link":"https:\/\/www.wordfence.com\/threat-intel\/vulnerabilities\/wordpress-plugins\/polylang\/polylang-387-authenticated-contributor-information-exposure","description":"The Polylang plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.8.7. This makes it possible for authenticated attackers, with contributor-level access and above, to extract sensitive user or configuration data.","date":"2026-09-30"}],"impact":{"cvss":{"version":"3.1","vector":"CVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:N\/S:U\/C:L\/I:N\/A:N","av":"n","ac":"l","pr":"l","ui":"n","s":"u","c":"l","i":"n","a":"n","score":"4.3","severity":"m","exploitable":"0.0","impact":"0.0"},"cvss3":{"version":"3.1","vector":"CVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:N\/S:U\/C:L\/I:N\/A:N","score":"4.3","severity":"medium","av":"network","ac":"low","pr":"low","ui":"none","s":"unchanged","c":"low","i":"none","a":"none","exploitable":"0.0","impact":"0.0"},"ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","kev":false,"kev_date":null}}}]},"updated":"1791525269"}