Versions of the package directorytree/imapengine before 1.22.3 are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') via the id() function in ImapConnection.php due to improperly escaping user input before including it in IMAP ID commands. This allows attackers to read or delete victim's emails, terminate the victim's session or execute any valid IMAP command on victim's mailbox by including quote characters " or CRLF sequences \r\n in the input.
https://security.snyk.io/vuln/SNYK-PHP-DIRECTORYTREEIMAPENGINE-15274300
https://github.com/DirectoryTree/ImapEngine/pull/150
https://github.com/DirectoryTree/ImapEngine/commit/87fca56affd9527e6907a705e6d600c5174d9a5a
https://gist.github.com/wanamirulhakim/74b41589cdea3c07c3375e5946960778
Published: 2026-02-14
Updated: 2026-02-14
Base Score: 8
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:C
Severity: High
Base Score: 7.6
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Severity: High
Base Score: 7.2
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00015