How severe is CVE-2004-1209?

CVE-2004-1209 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2004-1209 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-1209?

CVE-2004-1209 affects Verisign Payflow Link. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2004-1209?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2004-1209 published?

CVE-2004-1209 was published on 2005-01-10 and last updated on 2026-06-16.

CVE-2004-1209

CVE-2004-1209 is a medium-severity vulnerability in Verisign Payflow Link with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Verisign Payflow Link
Published: 2005-01-10
Last modified: 2026-06-16

Description

Verisign Payflow Link, when running with empty Accepted URL fields, does not properly verify the data in the hidden AMOUNT field, which allows remote attackers to modify the price of the items that they purchase.

Frequently asked questions

What is CVE-2004-1209?: Verisign Payflow Link, when running with empty Accepted URL fields, does not properly verify the data in the hidden AMOUNT field, which allows remote attackers to modify the price of the items that they purchase.
How severe is CVE-2004-1209?: CVE-2004-1209 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-1209 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1209?: CVE-2004-1209 affects Verisign Payflow Link. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-1209?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-1209 published?: CVE-2004-1209 was published on 2005-01-10 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:verisign:payflow_link:*:*:*:*:*:*:*:*