CVE-2003-1561
Opera, probably before 7.50, sends Referer headers containing https:// URLs in requests for http:...
Opera, probably before 7.50, sends Referer headers containing https:// URLs in requests for http:// URLs, which allows remote attackers to obtain potentially sensitive information by reading Referer log data.
Exploit likelihood
What each source reports
NVD Score used
Opera, probably before 7.50, sends Referer headers containing https:// URLs in requests for http:// URLs, which allows remote attackers to obtain potentially sensitive information by reading Referer log data.
- Record
CVE-2003-1561- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
Opera, probably before 7.50, sends Referer headers containing https:// URLs in requests for http:// URLs, which allows remote attackers to obtain potentially sensitive information by reading Referer log data.
- Record
CVE-2003-1561- Updated
- 2026-11-02
EUVDEUVD-2003-1551 No score
Opera, probably before 7.50, sends Referer headers containing https:// URLs in requests for http:// URLs, which allows remote attackers to obtain potentially sensitive information by reading Referer log data.
- Record
EUVD-2003-1551- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jvhx-j333-37r2 No score
Opera, probably before 7.50, sends Referer headers containing https:// URLs in requests for http:...
Opera, probably before 7.50, sends Referer headers containing https:// URLs in requests for http:// URLs, which allows remote attackers to obtain potentially sensitive information by reading Referer log data.
- Record
GHSA-jvhx-j333-37r2- Weakness
- CWE-200
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2003-1561 is a medium vulnerability (CVSS 4.3) in Opera, published December 31, 2003. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.97%, the 61st percentile. No source names a fixed version.