CVE-2025-30349

CVE-2025-30349 vulnerability

CVSS

7.2

EPSS

30.2%

EPSS pct

98th

Exploited

No known

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 vendor

See references

Affected product

See references

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2025-03-21

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 30.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2025-30349

Confirm whether the affected software is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2025-30349.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-30349

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