CVE-2025-30349php-horde-imp XSS
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.
Published Mar 21, 2025 · Updated Oct 21, 2026 · Also known as DEBIAN-CVE-2025-30349, DLA-4113-1, UBUNTU-CVE-2025-30349
Key Facts
Patch immediately- CVE-2025-30349 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting php-horde-imp (debian), php-horde (ubuntu).
- It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Mar 21, 2025. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 31% probability of exploitation in the next 30 days.
- Fixed versions are available, including php-horde-imp 6.2.27-2+deb11u1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
7.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
31%
Higher than 98.2% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
54/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Mar 21, 2025
0 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CIRCL KEV | Mar 21, 2025 | n/a | Not reported |
| Industry KEV feed | Mar 21, 2025 | n/a | Not reported |
Affected Products
12 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| php-horde-impdebian | See advisory | 6.2.27-2+deb11u1 |
| php-hordeubuntu | See advisory | n/a |
Patched Releases
php-horde-imp
6.2.27-2+deb11u1
Timeline
Publicly disclosed
Mar 21, 2025
Added to CIRCL KEV
Mar 21, 2025
Added to Industry KEV feed
Mar 21, 2025
Last updated
Oct 21, 2026
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- advisorycve.org · CVERecord
- advisoryVulnCheck exploitation report
- advisorysecurity-tracker.debian.org · CVE-2025-30349
- advisoryubuntu.com · CVE-2025-30349
- advisorygithub.com · 15
FAQ
Common Questions.
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: php-horde-imp (debian); php-horde (ubuntu). The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Mar 21, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
Fixed versions are available, including php-horde-imp 6.2.27-2+deb11u1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2025-30349 On Your Attack Surface?
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