{"id":"CVE-2025-66823","title":"An HTML Injection vulnerability in TrueConf server 5.5.2.10813 in the conference description field allows an attacker to inject arbitrary HTML in the Create/Edit conference functionality","summary":"An HTML Injection vulnerability in TrueConf server 5.5.2.10813 in the conference description field allows an attacker to inject arbitrary HTML in the Create/Edit conference functionality. The payload will be triggered when the victim ope…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"vendor":"trueconf","product":"trueconf_server","affected":["trueconf_server = 5.5.2.10813"],"published":"2025-12-30","updated":"2026-08-20","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-66823","references":[{"url":"https://github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66823/README.md","label":"cve@mitre.org"},{"url":"https://trueconf.com","label":"cve@mitre.org"},{"url":"https://github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66823/README.md","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00189,"epssPercentile":0.08761,"ingestedAt":"2026-08-20T18:59:51.579Z","slug":"CVE-2025-66823","body":"## Overview\n\nAn HTML Injection vulnerability in TrueConf server 5.5.2.10813 in the conference description field allows an attacker to inject arbitrary HTML in the Create/Edit conference functionality. The payload will be triggered when the victim opens the Conference Info page ([conference url]/info).\n\n## Affected\n\n- `trueconf_server = 5.5.2.10813`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}