{"id":"CVE-2025-28254","aliases":["EUVD-2025-8662","GHSA-95j3-435g-vjcp","GHSA-jf6p-4hgv-v6qh"],"status":"published","title":"Leantime affected by Improper Neutralization of HTML Tags","description":"Cross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensitive information via the first name field in processMentions().","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00334,"percentile":0.27054,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79","CWE-80"],"published":"2025-02-21T23:54:26Z","modified":"2026-10-28T02:30:29Z","fixes":[{"ecosystem":"Packagist","package":"leantime/leantime","fixed_in":["3.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"leantime/leantime","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3"}]}]},{"source":"osv","ecosystem":"Packagist","package":"leantime/leantime","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3"}]}],"versions":["2.4","2.4-beta","2.4-beta-7","2.4-beta-8","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.7","2.4.8","3.0.0","3.0.0-beta","3.0.1","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.1.0-beta","3.1.1","3.1.2","3.1.3","3.1.4","3.2.0","3.2.0-beta","3.2.0-beta-2","3.2.1","v2.0","v2.0.1","v2.0.10","v2.0.11","v2.0.12","v2.0.13","v2.0.14","v2.0.15","v2.0.2","v2.0.3","v2.0.4","v2.0.5","v2.0.6","v2.0.7","v2.0.8","v2.0.9","v2.1","v2.1-beta","v2.1-beta2","v2.1-beta3","v2.1-beta5","v2.1-beta6","v2.1.1","v2.1.2","v2.1.3","v2.1.4","v2.1.5","v2.1.6","v2.1.7","v2.1.8","v2.1.9","v2.2.0","v2.2.1","v2.2.10","v2.2.11","v2.2.2","v2.2.3","v2.2.4","v2.2.5","v2.2.6","v2.2.7","v2.2.8","v2.2.9","v2.3.0-beta","v2.3.1-beta","v2.3.10","v2.3.11","v2.3.12","v2.3.13","v2.3.14","v2.3.15","v2.3.16","v2.3.17","v2.3.18","v2.3.19","v2.3.2","v2.3.20","v2.3.21","v2.3.22","v2.3.23","v2.3.24","v2.3.25","v2.3.26","v2.3.27","v2.3.3","v2.3.4","v2.3.5","v2.3.6","v2.3.7","v2.3.8","v2.3.9"]}],"products":[{"vendor":"leantime","product":"leantime"}],"references":[{"url":"https://github.com/Leantime/leantime/blob/0e7ddbbe3d582f657a1dddfef7b3419ae588cbf7/app/Domain/Notifications/Services/Notifications.php#L128","tags":["Product","web"]},{"url":"https://github.com/Leantime/leantime/commit/ce1d2073e4601183e1bdd90f4b433d16aee46a50","tags":["Patch","fix","web"]},{"url":"https://github.com/Leantime/leantime/security/advisories/GHSA-95j3-435g-vjcp","tags":["Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-28254","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-95j3-435g-vjcp"},{"url":"https://github.com/advisories/GHSA-jf6p-4hgv-v6qh"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/28xxx/CVE-2025-28254.json","tags":["advisory"]},{"url":"https://github.com/Leantime/leantime","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-28254","description":"Cross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensitive information via the first name field in processMentions().","status":"published","published":"2025-03-28T00:00:00Z","modified":"2025-04-01T20:08:41.614Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:50.176138Z"}],"euvd":[{"id":"EUVD-2025-8662","description":"Cross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensitive information via the first name field in processMentions().","status":"published","published":"2025-03-28T00:00:00Z","modified":"2025-04-01T20:08:41Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:52:45.339497Z"}],"ghsa":[{"id":"GHSA-95j3-435g-vjcp","title":"Leantime affected by Improper Neutralization of HTML Tags","description":"### Summary\n\nHTML can be arbitrarily injected into emails from Leantime due to improper neutralization of HTML tags in users' first names. This effectively allows for the creation of phishing emails from a Leantime instance's email address.","status":"published","published":"2025-02-21T23:54:26Z","modified":"2025-03-31T15:58:12Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-79","CWE-80"],"updated_at":"2026-11-02T14:38:37.325334Z"},{"id":"GHSA-jf6p-4hgv-v6qh","title":"Duplicate Advisory: Leantime affected by Improper Neutralization of HTML Tags","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-95j3-435g-vjcp. This link is maintained to preserve external references.\n\n### Original Description\nCross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensitive information via the first name field in processMentions().","status":"withdrawn","published":"2025-03-28T21:30:47Z","modified":"2025-03-31T15:57:42Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T14:38:37.325334Z"}],"nvd":[{"id":"CVE-2025-28254","description":"Cross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensitive information via the first name field in processMentions().","status":"published","published":"2025-03-28T21:15:17.71Z","modified":"2026-06-17T09:04:41.44Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:10:56.494516Z"}],"osv":[{"id":"CVE-2025-28254","description":"Cross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensitive information via the first name field in processMentions().","status":"published","published":"2025-03-28T00:00:00Z","modified":"2026-10-28T02:30:29.544654845Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:47.708311Z"},{"id":"GHSA-95j3-435g-vjcp","title":"Leantime affected by Improper Neutralization of HTML Tags","description":"### Summary\n\nHTML can be arbitrarily injected into emails from Leantime due to improper neutralization of HTML tags in users' first names. This effectively allows for the creation of phishing emails from a Leantime instance's email address.","status":"published","published":"2025-02-21T23:54:26Z","modified":"2025-03-31T16:59:49.593601Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-79","CWE-80"],"updated_at":"2026-11-02T15:46:43.123867Z"},{"id":"GHSA-jf6p-4hgv-v6qh","title":"Duplicate Advisory: Leantime affected by Improper Neutralization of HTML Tags","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-95j3-435g-vjcp. This link is maintained to preserve external references.\n\n### Original Description\nCross Site Scripting vulnerability in Leantime v3.2.1 and before allows an authenticated attacker to execute arbitrary code and obtain sensitive information via the first name field in processMentions().","status":"withdrawn","published":"2025-03-28T21:30:47Z","modified":"2025-03-31T16:34:19.695847Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T15:46:50.336262Z"}]}}