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CVE-2009-4363

16
FAUCET Score

CVE-2009-4363 describes a cross-site scripting (XSS) vulnerability in Horde Application Framework before 3.3.6, Horde Groupware before 1.2.5, and Horde Groupware Webmail Edition before 1.2.5. This flaw allows remote attackers to inject malicious scripts via specially crafted data: URIs within the HREF attribute of an A element in HTML email messages. With a CVSS score of 4.3 (Medium), this vulnerability has a network attack vector and medium attack complexity, potentially leading to information disclosure (partial impact) but no confidentiality or availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3.5CPE matchmatch criteria
cpe:2.3:a:horde:application_framework:*:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:horde:application_framework:2.0:*:*:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:a:horde:application_framework:2.1:*:*:*:*:*:*:*
2.1.3CPE matchmatch criteria
cpe:2.3:a:horde:application_framework:2.1.3:*:*:*:*:*:*:*
2.2CPE matchmatch criteria
cpe:2.3:a:horde:application_framework:2.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 40th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2009-4363Moderate

horde: XSS vulnerability via data: URIs

Nov 18, 2009

References

bugs.horde.org / ticket/8715
Exploit
bugs.horde.org / view.php
Exploit
cvs.horde.org / diff.php/horde/docs/CHANGES
lists.horde.org / archives/announce/2009/000529.html
Patch
marc.info
Patch
marc.info
Patch
securitytracker.com / id