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CVE-2003-1131

29
FAUCET Score

CVE-2003-1131 describes a remote file inclusion vulnerability in KnowledgeBuilder (also known as KnowledgeBase) versions 2.0, 2.1, and 3.0. An attacker can exploit this by manipulating the 'page' parameter in index.php to execute arbitrary PHP code from a remote web server. This vulnerability carries a CVSS score of 7.5, indicating high severity due to its low attack complexity, requiring no authentication, and potential for partial compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, an exploit is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding this older vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.1CPE matchmatch criteria
cpe:2.3:a:activecampaign:knowledgebuilder:2.0.1:*:*:*:*:*:*:*
2.1.0CPE matchmatch criteria
cpe:2.3:a:activecampaign:knowledgebuilder:2.1.0:*:*:*:*:*:*:*
2.1.4CPE matchmatch criteria
cpe:2.3:a:activecampaign:knowledgebuilder:2.1.4:*:*:*:*:*:*:*
3.0.1CPE matchmatch criteria
cpe:2.3:a:activecampaign:knowledgebuilder:3.0.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.43%
Probability of exploitation in next 30 days
EPSS Percentile
87.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-23476 · Dec 24, 2003
This CVE's current EPSS score of 0.0343 is in the 78th percentile among its peer group of 51,485 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, 0.1 Mastodon, and 0.4 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

marc.info
secunia.com / advisories/10504
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/14078
osvdb.org / 3228
securityfocus.com / archive/1/348359
Exploit
securityfocus.com / bid/9292
ExploitPatch