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CVE-2002-0457

25
FAUCET Score

CVE-2002-0457 describes a cross-site scripting (XSS) vulnerability in BG GuestBook 1.0, specifically within the signgbook.php script. Remote attackers can execute arbitrary JavaScript by injecting encoded HTML tags into various user-input fields like name, email, or message. This vulnerability carries a high CVSS score of 7.6, indicating a severe risk with network-based attacks, high complexity, and complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the CVE has garnered significant community discussion with 10 mentions, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:bg_guestbook:bg_guestbook:1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.6HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.11%
Probability of exploitation in next 30 days
EPSS Percentile
79.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0211 is in the 37th percentile among its peer group of 8,915 CVEs.

Social Chatter

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

Remediation

Remediation records are not available for this CVE.

References

iss.net / security_center/static/8474.php
PatchVendor Advisory
securityfocus.com / archive/1/262693
Vendor Advisory
securityfocus.com / bid/4308
PatchVendor Advisory