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CVE-2009-4408

15
FAUCET Score

CVE-2009-4408 describes multiple cross-site scripting (XSS) vulnerabilities in PyForum 1.0.3 and potentially earlier versions, as well as zForum, specifically within the models.parser component. Attackers can inject arbitrary web script or HTML by crafting malicious BBcode img or url tags, which are not properly sanitized when a post is displayed. The vulnerability has a CVSS score of 4.3, indicating a medium severity, as it requires medium attack complexity and only impacts integrity (P) with no confidentiality or availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.3CPE matchmatch criteria
cpe:2.3:a:pyforum:pyforum:*:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:pyforum:pyforum:1.0.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:pyforum:pyforum:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:pyforum:pyforum:1.0.2:*:*:*:*:*:*:*

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
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 20th 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

Remediation records are not available for this CVE.

References

secunia.com / advisories/37764
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/54855
osvdb.org / 61051
securityfocus.com / archive/1/508478/100/0/threaded