{"id":"CVE-2026-3220","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-3220","generatedAt":"2026-10-28T00:19:02.754Z","title":"The Autoptimize WordPress plugin before 3.1.15, Clearfy Cache WordPress plugin before 2.4.2, Speed Optimizer WordPress plugin before 7.7.9 are vulnerable to unauthenticated Stored Cross-Site Scripting (XSS) due to a predictable replacement hash used…","description":"The Autoptimize WordPress plugin before 3.1.15, Clearfy Cache  WordPress plugin before 2.4.2, Speed Optimizer  WordPress plugin before 7.7.9 are vulnerable to unauthenticated Stored Cross-Site Scripting (XSS) due to a predictable replacement hash used during the HTML minification process and abusing a regular expression. This allows an attacker to inject arbitrary HTML attributes in the final HTML output by anticipating the placeholder format.","published":"2026-05-18T07:16:12.000Z","lastModified":"2026-06-17T10:43:14.000Z","status":"Deferred","sourceIdentifier":"contact@wpscan.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-79"],"affected":[],"epss":{"score":0.0032,"percentile":0.2481,"date":"2026-10-26","history":[]},"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 (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://wpscan.com/vulnerability/3ceabf11-23cd-4c38-ba14-014348b0ff2d/","source":"contact@wpscan.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3220","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."}