CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и след действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
Horde IMP's AppleDouble MIME viewer writes an attacker-controlled attachment name into an HTML status block without escaping it. In lib/Mime/Viewer/Appledouble.php, _IMPrender() obtains the name of the data part with IMP_Contents::getPartName(), which returns the MIME part's own name parameter as supplied by the message, and passes it through sprintf into the text of an IMP_Mime_Status object. IMP_Mime_Status::__toString() concatenates each text entry directly into the surrounding table markup, so the value reaches the rendered page verbatim. A message crafted as multipart/appledouble whose data part carries markup in its name parameter therefore executes script in the context of any user who views it, and the payload persists in the mailbox. Exploitation requires no account on the target system, only the ability to send mail to a user. Version 7.2.0 escapes the value with htmlspecialchars(). The researcher additionally chains this flaw with the arbitrary file read of CVE-2026-58451, and reports that script running in an administrator's session can reach an application code-execution path.
Засегнати продукти
- horde imp: преди 7.2.0
Вид слабост
История
- 24 август 2026 Публикувано
Други уязвимости в horde imp
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-65053
- https://nvd.nist.gov/vuln/detail/CVE-2026-65053
- https://www.horde.org/apps/imp
- https://github.com/horde/imp/commit/f31449a12e3f945c90015d29524925c4c43f6324
- https://github.com/horde/imp/pull/107
- https://github.com/horde/imp/releases/tag/v7.2.0
- https://blog.evan.lat/posts/CVE-2026-65053/
- https://www.vulncheck.com/advisories/horde-imp-before-stored-cross-site-scripting-via-appledouble-viewer-part-name
- http://seclists.org/fulldisclosure/2026/Aug/115