{"id":"CVE-2026-55826","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-55826","generatedAt":"2026-10-28T01:19:42.241Z","title":"From version 2.0.0 to before version 2.1.48, the WooCommerce purchase event tracking mechanism allows an unauthenticated attacker to trigger the rendering of another customer's full order data — including personally identifiable information (PII) — into…","description":"The GTM Server Side plugin by stape.io implements server-side tracking on WordPress websites. From version 2.0.0 to before version 2.1.48, the WooCommerce purchase event tracking mechanism allows an unauthenticated attacker to trigger the rendering of another customer's full order data — including personally identifiable information (PII) — into the page's JavaScript dataLayer. This issue has been patched in version 2.1.48.","published":"2026-10-23T14:17:54.000Z","lastModified":"2026-10-23T19:57:43.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-200"],"affected":[],"epss":{"score":0.00337,"percentile":0.26897,"date":"2026-10-26","history":[{"date":"2026-10-24","score":0.00593,"percentile":0.47717}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-23T14:17:54.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-10-23T14:17:54.017Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"http://github.com/stape-io/gtm-server-side-wordpress-plugin/tree/v2.1.47","source":"security-advisories@github.com"},{"url":"https://github.com/stape-io/gtm-server-side-wordpress-plugin/commit/702898f57772279ca63d3f800336c1803103ea41","source":"security-advisories@github.com"},{"url":"https://github.com/stape-io/gtm-server-side-wordpress-plugin/commit/9ff46a050028c40fad5416f2fa35be574c823434","source":"security-advisories@github.com"},{"url":"https://github.com/stape-io/gtm-server-side-wordpress-plugin/releases/tag/2.1.48","source":"security-advisories@github.com"},{"url":"https://github.com/stape-io/gtm-server-side-wordpress-plugin/security/advisories/GHSA-j5j2-gr8c-8rvf","source":"security-advisories@github.com"},{"url":"https://github.com/stape-io/gtm-server-side-wordpress-plugin/tree/v2.1.48","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55826","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}