Microsoft Internet Explorer 4.0/5.0 MSHTML.DLL img privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Microsoft Internet Explorer 4.0/5.0. Affected is an unknown function in the library MSHTML.DLL. Such manipulation of the argument img leads to privileges management. This vulnerability is listed as CVE-1999-0490. The attack may be performed from remote. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Internet Explorer 4.0/5.0 (Web Browser). Affected by this issue is some unknown functionality in the library MSHTML.DLL. The manipulation of the argument img with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

MSHTML.DLL in Internet Explorer 5.0 allows a remote attacker to learn information about a local user's files via an IMG SRC tag.

The issue has been introduced in 04/01/1997. The weakness was presented 04/21/1999 as MS99-012 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability is handled as CVE-1999-0490. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 750 days. During that time the estimated underground price was around $25k-$100k.

Applying the patch MS99-012 is able to eliminate this problem. The bugfix is ready for download at microsoft.com.

The vulnerability is also documented in the databases at X-Force (2070), SecurityFocus (BID 117†) and Vulnerability Center (SBV-4256†). See VDB-14603 and VDB-14617 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS99-012

Timelineinfo

04/01/1997 🔍
04/21/1999 +750 days 🔍
04/21/1999 +0 days 🔍
04/21/1999 +0 days 🔍
05/04/2004 +1840 days 🔍
06/20/2014 +3699 days 🔍
04/19/2026 +4321 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS99-012
Status: Confirmed

CVE: CVE-1999-0490 (🔍)
GCVE (CVE): GCVE-0-1999-0490
GCVE (VulDB): GCVE-100-14618
X-Force: 2070
SecurityFocus: 117
Vulnerability Center: 4256 - [MS99-012] MSHTML.DLL in Internet Explorer 5.0 Allows Information Disclosure, Medium

See also: 🔍

Entryinfo

Created: 06/20/2014 23:46
Updated: 04/19/2026 02:04
Changes: 06/20/2014 23:46 (64), 04/07/2017 12:05 (1), 04/19/2026 02:04 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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