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CVE-2005-2540

26
FAUCET Score

CVE-2005-2540 describes a CRLF injection vulnerability in FlatNuke 2.5.5 and earlier versions. This flaw allows remote, unauthenticated attackers to inject arbitrary PHP commands into a script via the signature field, which can then be executed by a direct request. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having low attack complexity, primarily impacting integrity. While not on the KEV catalog or Hot List, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
2.5.5CPE matchmatch criteria
cpe:2.3:a:flatnuke:flatnuke:2.5.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.10%
Probability of exploitation in next 30 days
EPSS Percentile
92.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-1140 · Aug 8, 2005
This CVE's current EPSS score of 0.0610 is in the 90th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

marc.info
secunia.com / advisories/16330
exchange.xforce.ibmcloud.com / vulnerabilities/21709
osvdb.org / 18554
rgod.altervista.org / flatnuke.html
Exploit
securityfocus.com / bid/14485