Opera Web Browser up to 9.x External Application Launcher input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Opera Web Browser up to 9.x. It has been classified as critical. Impacted is an unknown function of the component External Application Launcher. Performing a manipulation results in input validation. This vulnerability was named CVE-2007-5540. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Opera Web Browser up to 9.x (Web Browser). This affects an unknown code block of the component External Application Launcher. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in Opera before 9.24 allows remote attackers to overwrite functions on pages from other domains and bypass the same-origin policy via unknown vectors.

The weakness was presented 10/17/2007 by Michael A. Puls II (Website). The advisory is shared at opera.com. This vulnerability is uniquely identified as CVE-2007-5540 since 10/17/2007. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 27533 (openSUSE 10 Security Update : opera (opera-4575)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115648 (Opera Multiple Vulnerabilities).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (27533), SecurityFocus (BID 26102†), OSVDB (38127†) and Secunia (SA27431†). See VDB-3394 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 27533
Nessus Name: openSUSE 10 Security Update : opera (opera-4575)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 58777
OpenVAS Name: FreeBSD Ports: opera, opera-devel, linux-opera
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

10/17/2007 🔍
10/17/2007 +0 days 🔍
10/17/2007 +0 days 🔍
10/17/2007 +0 days 🔍
10/17/2007 +0 days 🔍
10/19/2007 +1 days 🔍
10/24/2007 +5 days 🔍
10/25/2007 +1 days 🔍
06/02/2025 +6430 days 🔍

Sourcesinfo

Vendor: opera.com

Advisory: opera.com
Researcher: Michael A. Puls II
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-5540 (🔍)
GCVE (CVE): GCVE-0-2007-5540
GCVE (VulDB): GCVE-100-3393
SecurityFocus: 26102 - Opera Web Browser Frame Functions Same Origin Policy Bypass Vulnerability
Secunia: 27431 - Gentoo update for opera, Highly Critical
OSVDB: 38127 - Opera Cross Domain Function Overwrite Unspecified Issue
Vupen: ADV-2007-3529

See also: 🔍

Entryinfo

Created: 10/19/2007 10:35
Updated: 06/02/2025 15:39
Changes: 10/19/2007 10:35 (73), 04/22/2019 10:52 (3), 03/16/2021 06:36 (7), 03/16/2021 06:43 (1), 06/02/2025 15:39 (18)
Complete: 🔍
Cache ID: 216:DBE:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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