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CVE-2007-2147

35
FAUCET Score

CVE-2007-2147 describes a critical authentication bypass vulnerability in Stephen Craton Chatness 2.5.3 and earlier, specifically within the admin/options.php script. This flaw allows unauthenticated remote attackers to directly access and manipulate sensitive configuration files, including classes/vars.php and classes/varstuff.php. With a CVSS score of 10.0, this vulnerability is easily exploitable over the network with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, public exploit code exists on ExploitDB, indicating a potential for exploitation, though there is no evidence of widespread active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5.3CPE matchmatch criteria
cpe:2.3:a:stephen_craton:chatness:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
3.42%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-3725 · Apr 12, 2007
This CVE's current EPSS score of 0.0342 is in the 78th percentile among its peer group of 51,455 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

secunia.com / advisories/24873
Vendor Advisory
securityreason.com / securityalert/2595
securityfocus.com / archive/1/465547/100/0/threaded
vupen.com / english/advisories/2007/1386