{"id":"CVE-2021-24276","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-24276","generatedAt":"2026-10-27T22:32:38.003Z","title":"The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue","description":"The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue","published":"2021-05-05T19:15:09.000Z","lastModified":"2026-06-17T03:39:45.000Z","status":"Modified","sourceIdentifier":"contact@wpscan.com","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["supsystic/contact form"],"epss":{"score":0.16044,"percentile":0.96892,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2021-09-28","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":50344,"kind":"exploit","title":"WordPress Plugin Contact Form 1.7.14 - Reflected Cross-Site Scripting (XSS)","url":"https://www.exploit-db.com/exploits/50344","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/50344.txt","file":"exploits/php/webapps/50344.txt","published":"2021-09-28","added":"2021-09-28","updated":"2021-09-28","author":"0xB9","type":"webapps","platform":"php","port":null,"verified":false,"codes":["CVE-2021-24276"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comcontact-form-by-supsystic.1.7.14.zip","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 16.0%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/164308/WordPress-Contact-Form-1.7.14-Cross-Site-Scripting.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"contact@wpscan.com"},{"url":"https://wpscan.com/vulnerability/1301123c-5e63-432a-ab90-3221ca532d9c","tags":["Exploit","Third Party Advisory"],"source":"contact@wpscan.com"},{"url":"http://packetstormsecurity.com/files/164308/WordPress-Contact-Form-1.7.14-Cross-Site-Scripting.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wpscan.com/vulnerability/1301123c-5e63-432a-ab90-3221ca532d9c","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-24276","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."}