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CVE-2009-4412

17
FAUCET Score

CVE-2009-4412 describes an unrestricted file upload vulnerability in Serendipity versions prior to 1.5. This flaw allows authenticated attackers to execute arbitrary code by uploading a specially crafted file with an executable extension followed by a safe extension. The vulnerability has a CVSS score of 6.0, indicating a medium severity, as it requires authentication and moderate attack complexity, but can lead to partial compromise of confidentiality, integrity, and availability. 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
<= 1.5CPE matchmatch criteria
cpe:2.3:a:s9y:serendipity:*:beta1:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:s9y:serendipity:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:s9y:serendipity:0.4:*:*:*:*:*:*:*
0.5CPE matchmatch criteria
cpe:2.3:a:s9y:serendipity:0.5:*:*:*:*:*:*:*
0.5CPE matchmatch criteria
cpe:2.3:a:s9y:serendipity:0.5:pl1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.0MEDIUM

AV:N/AC:M/Au:S/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.85%
Probability of exploitation in next 30 days
EPSS Percentile
76.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0185 is in the 82nd percentile among its peer group of 1,428 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, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.s9y.org / archives/211-Serendipity-1.5-released.html
osvdb.org / 61245
secunia.com / advisories/37830
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/54985
openwall.com / lists/oss-security/2009/12/21/1
vupen.com / english/advisories/2009/3626
Vendor Advisory