Cross-site scripting in Horde IMP
Priority HIGH 71CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.31292 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-30349
- 2026-10-03 Alias added: GHSA-mchq-vv84-m9gr
References
Other 13
- https://github.com/horde/webmail/releases/tag/v5.2.22
- https://www.horde.org/apps/imp
- https://lists.horde.org/archives/imp/Week-of-Mon-20250317/057781.html
- https://web.archive.org/web/20250321152616/https://lists.horde.org/archives/imp/Week-of-Mon-20250317/057781.html
- https://www.horde.org/download/horde
- https://github.com/horde/imp/blob/fd9212ca3b72ff834504af4886f7d95138619bd4/doc/INSTALL.rst?plain=1#L61-L62
- https://www.horde.org/apps/horde
- https://github.com/horde/imp/blob/fd9212ca3b72ff834504af4886f7d95138619bd4/doc/INSTALL.rst?plain=1#L23-L25
- https://lists.horde.org/archives/imp/Week-of-Mon-20250317/057784.html
- https://github.com/horde/imp/releases/tag/v6.2.27
- https://github.com/horde/base/releases/tag/v5.2.23
- https://web.archive.org/web/20250321162434/https://lists.horde.org/archives/imp/Week-of-Mon-20250317/057784.html
- https://github.com/natasaka/CVE-2025-30349/
More Horde vulnerabilities
- TI-2020-06837 Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV… CVSS 3.1CRITICAL 9.8
- TI-2022-12524 Horde Groupware Webmail Edition through 5.2.22 allows a reflection injection attack… CVSS 3.1HIGH 8.0
- TI-2012-00202 Horde 3.3.12, Horde Groupware 1.2.10, and Horde Groupware Webmail Edition 1.2.10, as… CVSS 2.0HIGH 7.5
- TI-2017-05066 In Horde_Crypt before 2.7.6, as used in Horde Groupware Webmail Edition through 5.2.17… CVSS 3.0HIGH 8.8
- TI-2014-01304 The framework/Util/lib/Horde/Variables.php script in the Util library in Horde before… CVSS 2.0HIGH 7.5
- TI-2006-01444 Eval injection vulnerability in Horde Application Framework versions 3.0 before 3.0.10… CVSS 2.0HIGH 7.5
Sources
- CVE-2025-30349 · CVE Program
- CVE-2025-30349 · NVD
- FIRST EPSS
- GHSA-mchq-vv84-m9gr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences