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CVE-2025-30349

HIGHCVSS 7.2/10EPSS 29.19%

Last modified

CVE-2025-30349 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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.. EPSS estimates a 29.19% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.2/10

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

EPSS Probability
29.19%

97.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is 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 exploited in the wild in March 2025.
How severe is CVE-2025-30349?
CVE-2025-30349 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 29.19% probability of exploitation in the next 30 days.
How do I fix CVE-2025-30349?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-30349?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST