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CVE-2002-0490

25
FAUCET Score

CVE-2002-0490 describes a critical vulnerability in Instant Web Mail versions prior to 0.60, where improper filtering of CR/LF sequences allows remote attackers to inject arbitrary commands. This flaw enables attackers to execute POP commands via the 'id' parameter in message.php or modify mail message headers through various parameters in write.php. With a CVSS score of 10.0, this vulnerability is highly severe, requiring no authentication and allowing for complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.55CPE matchmatch criteria
cpe:2.3:a:instant_web_mail:instant_web_mail:0.55:*:*:*:*:*:*:*
0.56CPE matchmatch criteria
cpe:2.3:a:instant_web_mail:instant_web_mail:0.56:*:*:*:*:*:*:*
0.57CPE matchmatch criteria
cpe:2.3:a:instant_web_mail:instant_web_mail:0.57:*:*:*:*:*:*:*
0.58CPE matchmatch criteria
cpe:2.3:a:instant_web_mail:instant_web_mail:0.58:*:*:*:*:*:*:*
0.59CPE matchmatch criteria
cpe:2.3:a:instant_web_mail:instant_web_mail:0.59:*:*:*:*:*:*:*

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
2.75%
Probability of exploitation in next 30 days
EPSS Percentile
84.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0275 is in the 73rd 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

instantwebmail.sourceforge.net
iss.net / security_center/static/8650.php
PatchVendor Advisory
securityfocus.com / archive/1/264041
Vendor Advisory
securityfocus.com / bid/4361
PatchVendor Advisory