Is CVE-2003-1420 in the CISA KEV catalog?

No. CVE-2003-1420 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2003-1420?

CVE-2003-1420 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2003-1420?

CVE-2003-1420 has an EPSS score of 2.00% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2003-1420?

Upgrade Opera GX Stable to 7.02 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2003-1420

MEDIUMEPSS 78th pctl

4.3

CVSS v2

NVD

Description

Cross-site scripting (XSS) vulnerability in Opera 6.0 through 7.0 with automatic redirection disabled allows remote attackers to inject arbitrary web script or HTML via the HTTP Location header.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

Opera GX StableWindows application

Affected:6.0 7.02Fixed in:7.02Opera Software

Opera StableWindows application

Affected:6.0 7.02Fixed in:7.02Opera Software

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.00%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Patch1

securityfocus.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.