WordPress Polylang plugin <= 3.7.3 - Deserialization of untrusted data vulnerability

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    "cveId": "CVE-2025-64353",
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    "assignerShortName": "Patchstack",
    "dateUpdated": "2025-10-31T18:58:13.107Z",
    "dateReserved": "2025-10-31T11:23:06.889Z",
    "datePublished": "2025-10-31T11:42:25.417Z",
    "state": "PUBLISHED"
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        "dateUpdated": "2025-10-31T11:42:25.417Z"
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      "datePublic": "2025-10-31T12:41:10.958Z",
      "title": "WordPress Polylang plugin <= 3.7.3 - Deserialization of untrusted data vulnerability",
      "descriptions": [
        {
          "lang": "en",
          "value": "Deserialization of Untrusted Data vulnerability in Chouby Polylang polylang allows Object Injection.This issue affects Polylang: from n/a through <= 3.7.3.",
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              "value": "Deserialization of Untrusted Data vulnerability in Chouby Polylang polylang allows Object Injection.<p>This issue affects Polylang: from n/a through <= 3.7.3.</p>"
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      "affected": [
        {
          "vendor": "Chouby",
          "product": "Polylang",
          "collectionURL": "https://wordpress.org/plugins",
          "packageName": "polylang",
          "defaultStatus": "unaffected",
          "versions": [
            {
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              "status": "affected",
              "versionType": "custom",
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      "problemTypes": [
        {
          "descriptions": [
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              "lang": "en",
              "description": "Deserialization of Untrusted Data",
              "cweId": "CWE-502",
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      "references": [
        {
          "url": "https://vdp.patchstack.com/database/Wordpress/Plugin/polylang/vulnerability/wordpress-polylang-plugin-3-7-3-deserialization-of-untrusted-data-vulnerability",
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          "capecId": "CAPEC-586",
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            {
              "lang": "en",
              "value": "Object Injection"
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          "lang": "en",
          "value": "Phat RiO - BlueRock | Patchstack Bug Bounty Program",
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        "title": "CISA ADP Vulnrichment",
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              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "attackVector": "NETWORK",
              "attackComplexity": "LOW",
              "privilegesRequired": "LOW",
              "userInteraction": "NONE",
              "scope": "UNCHANGED",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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              "baseScore": 8.8,
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