CVE-2003-0307

CVE-2003-0307 is a high-severity vulnerability in Poster 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

Poster version.two allows remote authenticated users to gain administrative privileges by appending the "|" field separator and an "admin" value into the email address field.

Frequently asked questions

What is CVE-2003-0307?
Poster version.two allows remote authenticated users to gain administrative privileges by appending the "|" field separator and an "admin" value into the email address field.
How severe is CVE-2003-0307?
CVE-2003-0307 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0307 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0307?
CVE-2003-0307 affects Poster. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0307?
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-2003-0307 published?
CVE-2003-0307 was published on 2003-06-09 and last updated on 2026-06-16.

References

Affected products (1)