CVE-2005-4155

CVE-2005-4155 is a high-severity vulnerability in Adaptive Technology Resource Centre Atutor with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

registration.PHP in ATutor 1.5.1 pl2 allows remote attackers to execute arbitrary SQL commands via an e-mail address that ends in a NULL character, which bypasses the PHP regular expression check. NOTE: it is possible that this is actually a bug in PHP code, in which case this should not be treated as a vulnerability in ATutor.

Frequently asked questions

What is CVE-2005-4155?
registration.PHP in ATutor 1.5.1 pl2 allows remote attackers to execute arbitrary SQL commands via an e-mail address that ends in a NULL character, which bypasses the PHP regular expression check. NOTE: it is possible that this is actually a bug in PHP code, in which case this should not be treated as a vulnerability in ATutor.
How severe is CVE-2005-4155?
CVE-2005-4155 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-4155 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-2005-4155?
CVE-2005-4155 affects Adaptive Technology Resource Centre Atutor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2005-4155?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2005-4155 published?
CVE-2005-4155 was published on 2005-12-11 and last updated on 2026-06-16.

References

Affected products (1)

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