{"cve":"CVE-2021-45822","nvd":{"published":"2022-03-16T16:15:10.757","modified":"2026-06-17T04:14:07.387","status":"Modified","description":"A cross-site scripting vulnerability is present in Xbtit 3.1. The stored XSS vulnerability occurs because /ajaxchat/sendChatData.php does not properly validate the value of the \"n\" (POST) parameter. Through this vulnerability, an attacker is capable to execute malicious JavaScript code.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://emaragkos.gr/infosec-adventures/xbtit-3-1-xss-stored-amp-reflected/","https://github.com/btiteam/xbtit-3.1","https://github.com/btiteam/xbtit-3.1/issues/7","https://emaragkos.gr/infosec-adventures/xbtit-3-1-xss-stored-amp-reflected/","https://github.com/btiteam/xbtit-3.1"],"products":["btiteam:xbtit"],"source":"nvd","synced_at":"2026-10-19T21:29:06.454770966+00:00"},"epss":{"cve":"CVE-2021-45822","score":0.01055,"percentile":0.64434,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}