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CVE-2009-0502

14
FAUCET Score

CVE-2009-0502 describes a cross-site scripting (XSS) vulnerability in the Snoopy library (version 1.2.3), specifically within the HTML block functionality, as integrated into various Moodle versions (1.6.x, 1.7.x, 1.8.x, 1.9.x). This flaw allows remote attackers to inject malicious web scripts or HTML by exploiting improper handling of HTML blocks when the "Login as" feature is used to access MyMoodle or Blog pages. The vulnerability carries a CVSS score of 4.3 (Medium), indicating a network-based attack vector with medium attack complexity and a potential impact of partial integrity compromise. There is no confidentiality or availability impact. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting low public attention.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.3CPE matchmatch criteria
cpe:2.3:a:snoopy:snoopy:1.2.3:*:*:*:*:*:*:*
1.7.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.7.0:*:*:*:*:*:*:*
1.7.1CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.7.1:*:*:*:*:*:*:*
1.7.2CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.7.2:*:*:*:*:*:*:*
1.7.3CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:1.7.3:*:*:*:*:*:*:*

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 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0125 is in the 34th percentile among its peer group of 19,954 CVEs.

Social Chatter

No social media mentions found for this CVE.

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-2009-0502Moderate

moodle: XSS vuln in HTML blocks

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