What’s Vulnerable › Vulnerabilities

CVE-2025-30349

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 31.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-03-21 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• horde imp: through 6.2.27

References

• https://github.com/horde/base/releases/tag/v5.2.23
• https://github.com/horde/imp/blob/fd9212ca3b72ff834504af4886f7d95138619bd4/doc/INSTALL.rst?plain=1#L23-L25
• https://github.com/horde/imp/blob/fd9212ca3b72ff834504af4886f7d95138619bd4/doc/INSTALL.rst?plain=1#L61-L62
• https://github.com/horde/imp/releases/tag/v6.2.27
• https://github.com/horde/webmail/releases/tag/v5.2.22
• https://github.com/natasaka/CVE-2025-30349/
• https://lists.horde.org/archives/imp/Week-of-Mon-20250317/057781.html
• https://lists.horde.org/archives/imp/Week-of-Mon-20250317/057784.html
• https://web.archive.org/web/20250321152616/https://lists.horde.org/archives/imp/Week-of-Mon-20250317/057781.html
• https://web.archive.org/web/20250321162434/https://lists.horde.org/archives/imp/Week-of-Mon-20250317/057784.html
• https://www.horde.org/apps/horde
• https://www.horde.org/apps/imp

Get alerted when CVE-2025-30349 or the next vulnerability affects your stack