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CVE-2011-4451

40
FAUCET Score

CVE-2011-4451 affects WikkaWiki versions 1.3.1 and 1.3.2, allowing remote attackers to inject arbitrary PHP code into the spamlog_path file via the User-Agent HTTP header during an addcomment request, provided the spam_logging option is enabled. This vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and a potential impact of partial integrity compromise. While the vendor disputes the issue due to the spamlog_path file not being interpreted by PHP, a Metasploit module and an ExploitDB entry exist, demonstrating exploitability. Despite the availability of exploit code, there is no evidence of active exploitation, and community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
1.3.1CPE matchmatch criteria
cpe:2.3:a:wikkawiki:wikkawiki:1.3.1:*:*:*:*:*:*:*
1.3.2CPE matchmatch criteria
cpe:2.3:a:wikkawiki:wikkawiki:1.3.2:*:*:*:*:*:*:*

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
14.17%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: WikkaWiki 1.3.2 Spam Logging PHP Injection · Nov 30, 2011
ExploitDB: EDB-18177 · Nov 30, 2011
This CVE's current EPSS score of 0.1417 is in the 96th 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

wush.net / trac/wikka/ticket/1098
Exploit