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CVE-2009-0500

15
FAUCET Score

CVE-2009-0500 describes a cross-site scripting (XSS) vulnerability in Moodle versions 1.6.x, 1.7.x, 1.8.x, and 1.9.x, specifically within the course/lib.php component. This flaw allows unauthenticated remote attackers to inject arbitrary web script or HTML via crafted log table information, which is then improperly displayed in log reports. The vulnerability has a CVSS score of 4.3, indicating medium attack complexity and potential for partial integrity impact, but no confidentiality or availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.6.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.6.0:*:*:*:*:*:*:*
1.6.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.6.1:*:*:*:*:*:*:*
1.6.2CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.6.2:*:*:*:*:*:*:*
1.6.3CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.6.3:*:*:*:*:*:*:*
1.6.4CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.6.4:*:*:*:*:*:*:*

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
1.25%
Probability of exploitation in next 30 days
EPSS Percentile
66.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0125 is in the 34th 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

Vendor Advisories (1)

redhatCVE-2009-0500Moderate

moodle: XSS vuln due to missing input validation in logs

Feb 4, 2009

References

lists.opensuse.org / opensuse-security-announce/2009-03/msg00004.html
moodle.org / security
Vendor Advisory
secunia.com / advisories/33955
secunia.com / advisories/34418
debian.org / security/2009/dsa-1724
openwall.com / lists/oss-security/2009/02/04/1