Best Practical Request Tracker (RT) before 4.4.7 and 5.x before 5.0.5 allows Information Exposure in responses to mail-gateway REST API calls.

Best Practical Request Tracker (RT) before 4.4.7 and 5.x before 5.0.5 allows Information Disclosure via fake or spoofed RT email headers in an email message or a mail-gateway REST API call.

Best Practical Request Tracker (RT) before 5.0.3 has an Open Redirect via a ticket search.

Best Practical Request Tracker (RT) before 4.4.6 and 5.x before 5.0.3 allows XSS via a crafted content type for an attachment.

The dashboard subscription interface in Request Tracker (RT) 4.x before 4.0.25, 4.2.x before 4.2.14, and 4.4.x before 4.4.2 might allow remote authenticated users with certain privileges to execute arbitrary code via a crafted saved search name.

Request Tracker (RT) 4.x before 4.0.25, 4.2.x before 4.2.14, and 4.4.x before 4.4.2 allows remote attackers to obtain sensitive information about cross-site request forgery (CSRF) verification tokens via a crafted URL.

Request Tracker (RT) 4.x before 4.0.25, 4.2.x before 4.2.14, and 4.4.x before 4.4.2 does not use a constant-time comparison algorithm for secrets, which makes it easier for remote attackers to obtain sensitive user password information via a timing side-channel attack.

Cross-site scripting (XSS) vulnerability in Request Tracker (RT) 4.x before 4.0.25, 4.2.x before 4.2.14, and 4.4.x before 4.4.2, when the AlwaysDownloadAttachments config setting is not in use, allows remote attackers to inject arbitrary web script or HTML via a file upload with an unspecified content type.

Cross-site scripting (XSS) vulnerability in the cryptography interface in Request Tracker (RT) before 4.2.12 allows remote attackers to inject arbitrary web script or HTML via a crafted public key.

Multiple cross-site scripting (XSS) vulnerabilities in Request Tracker (RT) 4.x before 4.2.12 allow remote attackers to inject arbitrary web script or HTML via vectors related to the (1) user and (2) group rights management pages.

RT (aka Request Tracker) before 4.0.23 and 4.2.x before 4.2.10 allows remote attackers to hijack sessions via an RSS feed URL.

RT (aka Request Tracker) 3.8.8 through 4.x before 4.0.23 and 4.2.x before 4.2.10 allows remote attackers to obtain sensitive RSS feed URLs and ticket data via unspecified vectors.

The email gateway in RT (aka Request Tracker) 3.0.0 through 4.x before 4.0.23 and 4.2.x before 4.2.10 allows remote attackers to cause a denial of service (CPU and disk consumption) via a crafted email.

The MobileUI (aka RT-Extension-MobileUI) extension before 1.04 in Request Tracker (RT) 4.0.0 before 4.0.13, when using the file-based session store (Apache::Session::File) and certain authentication extensions, allows remote attackers to reuse unauthorized sessions and obtain user preferences and caches via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the MobileUI (aka RT-Extension-MobileUI) extension before 1.04 in Request Tracker (RT) 4.0.0 before 4.0.13 allows remote attackers to inject arbitrary web script or HTML via the name of an attached file.

Best Practical Solutions RT 3.8.x before 3.8.15 and 4.0.x before 4.0.8, when GnuPG is enabled, allows remote attackers to bypass intended restrictions on reading keys in the product's keyring, and trigger outbound e-mail messages signed by an arbitrary stored secret key, by leveraging a UI e-mail signing privilege.

Best Practical Solutions RT 3.8.x before 3.8.15 and 4.0.x before 4.0.8, when GnuPG is enabled, does not ensure that the UI labels unencrypted messages as unencrypted, which might make it easier for remote attackers to spoof details of a message's origin or interfere with encryption-policy auditing via an e-mail message to a queue's address.

Best Practical Solutions RT 3.8.x before 3.8.15 and 4.0.x before 4.0.8, when GnuPG is enabled, allows remote attackers to configure encryption or signing for certain outbound e-mail, and possibly cause a denial of service (loss of e-mail readability), via an e-mail message to a queue's address.

Best Practical Solutions RT 3.8.x before 3.8.15 and 4.0.x before 4.0.8, when GnuPG is enabled with a "Sign by default" queue configuration, uses a queue's key for signing, which might allow remote attackers to spoof messages by leveraging the lack of authentication semantics.

SQL injection vulnerability in Approvals/ in Request Tracker (RT) 4.0.10 and earlier allows remote attackers to execute arbitrary SQL commands via the ShowPending parameter. NOTE: the vendor disputes this issue, stating "We were unable to replicate it, and the individual that reported it retracted their report," and "we had verified that the claimed exploit did not function according to the author's claims.