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CVE-2011-4809

23
FAUCET Score

CVE-2011-4809 describes multiple cross-site scripting (XSS) vulnerabilities found in the HM Community (com_hmcommunity) component, specifically versions prior to 1.01, for the Joomla! content management system. Attackers can inject malicious web script or HTML through various parameters when saving a user profile. This vulnerability has a CVSS score of 4.3, indicating a medium severity, as it requires medium attack complexity and only impacts integrity, without affecting confidentiality or availability. While no active exploitation is noted, exploit code for these vulnerabilities is publicly available on ExploitDB, though it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0CPE matchmatch criteria
cpe:2.3:a:joomlaextensions:com_hmcommunity:*:*:*:*:*:*:*:*

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
1.63%
Probability of exploitation in next 30 days
EPSS Percentile
73.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-18050 · Oct 31, 2011
This CVE's current EPSS score of 0.0163 is in the 50th percentile among its peer group of 19,954 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

Remediation records are not available for this CVE.

References

joomlaextensions.co.in / index.php
secunia.com / advisories/46656
Vendor Advisory
exploit-db.com / exploits/18050
Exploit
osvdb.org / 76726