CVE-2026-58524: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft Edge (Chromium-based)
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-58524) in Microsoft Edge (Chromium-based) is caused by improper neutralization of input during web page generation, classified as CWE-79 (Cross-site Scripting). It allows an attacker to perform spoofing attacks over a network by injecting malicious scripts. The CVSS v3.1 base score is 5.4, indicating medium severity with network attack vector, low attack complexity, no privileges required, and user interaction needed. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation could lead to limited confidentiality and integrity impact through spoofing attacks, potentially misleading users or stealing information via injected scripts. There is no impact on availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch as provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58524 to remediate this vulnerability.
CVE-2026-58524: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Microsoft Edge (Chromium-based)
Description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVSS v3.1
Score 5.4medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-58524) in Microsoft Edge (Chromium-based) is caused by improper neutralization of input during web page generation, classified as CWE-79 (Cross-site Scripting). It allows an attacker to perform spoofing attacks over a network by injecting malicious scripts. The CVSS v3.1 base score is 5.4, indicating medium severity with network attack vector, low attack complexity, no privileges required, and user interaction needed. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation could lead to limited confidentiality and integrity impact through spoofing attacks, potentially misleading users or stealing information via injected scripts. There is no impact on availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch as provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58524 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-01T04:33:41.869Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58524","vendor":"Microsoft"}]
Threat ID: 6a48210727e9c79719accdca
Added to database: 07/03/2026, 20:52:23 UTC
Last enriched: 08/10/2026, 13:46:03 UTC
Last updated: 08/15/2026, 13:40:16 UTC
Views: 75
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