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CVE-2009-1940

15
FAUCET Score

CVE-2009-1940 describes a cross-site scripting (XSS) vulnerability within the administrator panel of the com_users core component in Joomla! versions 1.5.x through 1.5.10. This flaw allows remote attackers to inject arbitrary web script or HTML through unspecified vectors. With a CVSS score of 4.3 (medium severity), it requires medium attack complexity and could lead to information disclosure or defacement, but not impact availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.5CPE matchmatch criteria
cpe:2.3:a:joomla:joomla:1.5:*:*:*:*:*:*:*
1.5.1CPE matchmatch criteria
cpe:2.3:a:joomla:joomla:1.5.1:*:*:*:*:*:*:*
1.5.2CPE matchmatch criteria
cpe:2.3:a:joomla:joomla:1.5.2:*:*:*:*:*:*:*
1.5.3CPE matchmatch criteria
cpe:2.3:a:joomla:joomla:1.5.3:*:*:*:*:*:*:*
1.5.4CPE matchmatch criteria
cpe:2.3:a:joomla:joomla:1.5.4:*:*:*:*:*:*:*

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
2.03%
Probability of exploitation in next 30 days
EPSS Percentile
79.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0203 is in the 64th percentile among its peer group of 19,958 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

developer.joomla.org / security/news/295-20090601-core-comusers-xss.html
PatchVendor Advisory
osvdb.org / 54869
Patch
secunia.com / advisories/35278
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/50924
joomla.org / announcements/release-news/5235-joomla-1511-security-release-now-available.html
securityfocus.com / bid/35189
ExploitPatch
vupen.com / english/advisories/2009/1497