CVE-2003-0593
CVE-2003-0593 is a high-severity vulnerability in Opera Opera Browser 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. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 3% (86th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Opera Opera Browser
- Published:
- Last modified:
Description
Opera allows remote attackers to bypass intended cookie access restrictions on a web application via "%2e%2e" (encoded dot dot) directory traversal sequences in a URL, which causes Opera to send the cookie outside the specified URL subsets, e.g. to a vulnerable application that runs on the same server as the target application.
Frequently asked questions
- What is CVE-2003-0593?
- Opera allows remote attackers to bypass intended cookie access restrictions on a web application via "%2e%2e" (encoded dot dot) directory traversal sequences in a URL, which causes Opera to send the cookie outside the specified URL subsets, e.g. to a vulnerable application that runs on the same server as the target application.
- How severe is CVE-2003-0593?
- CVE-2003-0593 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2003-0593 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2003-0593?
- CVE-2003-0593 primarily affects Opera Opera Browser. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2003-0593?
- 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-2003-0593 published?
- CVE-2003-0593 was published on 2004-04-15 and last updated on 2026-06-16.
References
- http://archives.neohapsis.com/archives/vulnwatch/2004-q1/0056.html
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-March/018475.html
Affected products (25)
- cpe:2.3:a:opera:opera_browser:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:5.02:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:5.10:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:5.11:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:5.12:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:6.0:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:6.01:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:6.02:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:6.03:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:6.04:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:6.05:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:6.06:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:6.10:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.01:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.02:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.03:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.10:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.11:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.20:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.21:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.22:*:*:*:*:*:*:*
- cpe:2.3:a:opera:opera_browser:7.23:*:*:*:*:*:*:*
More vulnerabilities in Opera Opera Browser
- CVE-2013-3211 — Critical (CVSS 10.0): Unspecified vulnerability in Opera before 12.15 has unknown impact and attack vectors, related to a "moderately severe…
- CVE-2012-4145 — Critical (CVSS 10.0): Unspecified vulnerability in Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS…
- CVE-2012-3561 — Critical (CVSS 10.0): Opera before 11.64 does not properly allocate memory for URL strings, which allows remote attackers to execute…
- CVE-2012-3559 — Critical (CVSS 10.0): Unspecified vulnerability in Opera before 12.00 on Mac OS X has unknown impact and attack vectors, related to a…
- CVE-2011-4684 — Critical (CVSS 10.0): Opera before 11.60 does not properly handle certificate revocation, which has unspecified impact and remote attack…
- CVE-2011-4683 — Critical (CVSS 10.0): Unspecified vulnerability in Opera before 11.60 has unknown impact and attack vectors, related to a "moderately severe…
All CVEs affecting Opera Opera Browser →
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