What is CVE-2025-30349?

CVE-2025-30349 is a high-severity vulnerability in Horde Imp, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2025-03-21.

How severe is CVE-2025-30349?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2025-30349 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Horde Imp

CVE-2025-30349

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.302 (98.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Horde Imp — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-30349?: CVE-2025-30349 is a high-severity vulnerability in Horde Imp, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2025-03-21.
How severe is CVE-2025-30349?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2025-30349 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.