{"id":"CVE-2026-15689","title":"Dancer2::Plugin::Auth::Extensible versions through 0.713 for Perl allow password reset link poisoning via the request Host header in _default_email_password_reset and _default_welcome_send.\n\nBoth default emails emit a link of the form `$…","summary":"Dancer2::Plugin::Auth::Extensible versions through 0.713 for Perl allow password reset link poisoning via the request Host header in _default_email_password_reset and _default_welcome_send.\n\nBoth default emails emit a link of the form `$…","severity":"none","cwe":["CWE-640"],"published":"2026-08-15","updated":"2026-08-15","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-15689","references":[{"url":"https://metacpan.org/release/ABEVERLEY/Dancer2-Plugin-Auth-Extensible-0.711/source/lib/Dancer2/Plugin/Auth/Extensible.pm#L1031-1053","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://metacpan.org/release/ABEVERLEY/Dancer2-Plugin-Auth-Extensible-0.711/source/lib/Dancer2/Plugin/Auth/Extensible.pm#L1097-1121","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://metacpan.org/release/ABEVERLEY/Dancer2-Plugin-Auth-Extensible-0.712/source/lib/Dancer2/Plugin/Auth/Extensible.pm#L178-194","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://metacpan.org/release/ABEVERLEY/Dancer2-Plugin-Auth-Extensible-0.713/changes","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://metacpan.org/release/ABEVERLEY/Dancer2-Plugin-Auth-Extensible-0.713/source/lib/Dancer2/Plugin/Auth/Extensible.pm#L178-196","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"http://www.openwall.com/lists/oss-security/2026/08/15/4","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"ingestedAt":"2026-08-16T13:39:02.761Z","epss":0.00608,"epssPercentile":0.47786,"slug":"CVE-2026-15689","body":"## Overview\n\nDancer2::Plugin::Auth::Extensible versions through 0.713 for Perl allow password reset link poisoning via the request Host header in _default_email_password_reset and _default_welcome_send.\n\nBoth default emails emit a link of the form `$base/login/$code`, whose authority comes from the request Host header, or from X-Forwarded-Host under behind_proxy (obtained from Dancer2's request->base function). A POST to /login carrying submit_reset and a username needs no authentication: it stores a fresh reset code against that account and mails the account holder a link to a host of the sender's choosing. The welcome mail takes the same path when the application calls create_user with email_welcome set.\n\nThrough 0.711 the handlers read `request->uri_base` and `request->base` directly; Versions 0.712 and later provide an uri_base configuration key that defaults to the untrusted `request->uri_base` when unset.\n\nThe default configuration with reset_password_handler enabled and the default message text, a recipient who follows the link hands a working reset code to the sender's host, which is enough to take over the account.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}