CVE-2010-4803

CVE-2010-4803 is a critical-severity vulnerability in Mojolicious 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. The underlying weakness is classified as CWE-20.

Key facts

Description

Mojolicious before 0.999927 does not properly implement HMAC-MD5 checksums, which has unspecified impact and remote attack vectors.

Frequently asked questions

What is CVE-2010-4803?
Mojolicious before 0.999927 does not properly implement HMAC-MD5 checksums, which has unspecified impact and remote attack vectors.
How severe is CVE-2010-4803?
CVE-2010-4803 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2010-4803 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4803?
CVE-2010-4803 primarily affects Mojolicious. In total, 58 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4803?
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-2010-4803 published?
CVE-2010-4803 was published on 2011-05-03 and last updated on 2026-06-16.

References

Affected products (58)

More vulnerabilities in Mojolicious

All CVEs affecting Mojolicious →

Other CWE-20 (Improper Input Validation) vulnerabilities

Browse all CWE-20 (Improper Input Validation) vulnerabilities →