CVE-2002-0490

CVE-2002-0490 is a critical-severity vulnerability in Instant Web Mail with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Instant Web Mail before 0.60 does not properly filter CR/LF sequences, which allows remote attackers to (1) execute arbitrary POP commands via the id parameter in message.php, or (2) modify certain mail message headers via numerous parameters in write.php.

Frequently asked questions

What is CVE-2002-0490?
Instant Web Mail before 0.60 does not properly filter CR/LF sequences, which allows remote attackers to (1) execute arbitrary POP commands via the id parameter in message.php, or (2) modify certain mail message headers via numerous parameters in write.php.
How severe is CVE-2002-0490?
CVE-2002-0490 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2002-0490 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0490?
CVE-2002-0490 primarily affects Instant Web Mail. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0490?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2002-0490 published?
CVE-2002-0490 was published on 2002-08-12 and last updated on 2026-06-16.

References

Affected products (5)