Description
Horde IMP through 6.2.27, as used with Horde Application Framework through 5.2.23, allows XSS that leads to account takeover via a crafted text/html e-mail message with an onerror attribute (that may use base64-encoded JavaScript code), as exploited in the wild in March 2025.
Problem types
CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Product status
Any version
References
lists.debian.org/debian-lts-announce/2025/04/msg00008.html
github.com/horde/webmail/releases/tag/v5.2.22
lists.horde.org/...ives/imp/Week-of-Mon-20250317/057781.html
web.archive.org/...ives/imp/Week-of-Mon-20250317/057781.html
github.com/...04af4886f7d95138619bd4/doc/INSTALL.rst?plain=1
github.com/...04af4886f7d95138619bd4/doc/INSTALL.rst?plain=1
lists.horde.org/...ives/imp/Week-of-Mon-20250317/057784.html
github.com/horde/imp/releases/tag/v6.2.27
github.com/horde/base/releases/tag/v5.2.23
web.archive.org/...ives/imp/Week-of-Mon-20250317/057784.html
github.com/natasaka/CVE-2025-30349/