CVE-2026-66358: Cross-site scripting (XSS) in Extra Innovation Inc. acmailer CGI
A cross-site scripting (XSS) vulnerability has been identified in acmailer, which could allow an attacker to execute arbitrary scripts in the context of a user's browser. This vulnerability is classified as CWE-79 and has a CVSS 3.0 score of 6.1, indicating a medium severity level. No specific affected versions or patches have been provided in the available data. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
The vulnerability CVE-2026-66358 in acmailer is a cross-site scripting (XSS) flaw that may enable attackers to inject and execute arbitrary scripts within the victim's browser session. This can lead to limited confidentiality and integrity impacts, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N). The vulnerability requires user interaction and can be exploited remotely without privileges. No patch or remediation details are currently available.
Potential Impact
Successful exploitation of this XSS vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected user's browser, potentially leading to theft of sensitive information or manipulation of web content. The impact is limited to confidentiality and integrity with no availability impact. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should exercise caution when interacting with untrusted content in acmailer. No specific mitigation or workaround information is provided in the current data.
CVE-2026-66358: Cross-site scripting (XSS) in Extra Innovation Inc. acmailer CGI
Description
A cross-site scripting (XSS) vulnerability has been identified in acmailer, which could allow an attacker to execute arbitrary scripts in the context of a user's browser. This vulnerability is classified as CWE-79 and has a CVSS 3.0 score of 6.1, indicating a medium severity level. No specific affected versions or patches have been provided in the available data. There are no known exploits in the wild at this time.
CVSS v3.0
Score 6.1medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-66358 in acmailer is a cross-site scripting (XSS) flaw that may enable attackers to inject and execute arbitrary scripts within the victim's browser session. This can lead to limited confidentiality and integrity impacts, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N). The vulnerability requires user interaction and can be exploited remotely without privileges. No patch or remediation details are currently available.
Potential Impact
Successful exploitation of this XSS vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected user's browser, potentially leading to theft of sensitive information or manipulation of web content. The impact is limited to confidentiality and integrity with no availability impact. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should exercise caution when interacting with untrusted content in acmailer. No specific mitigation or workaround information is provided in the current data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-qv73-xfjm-gc7w
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-66358"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.0
Threat ID: 6a85b4b9acd9273b49251899
Added to database: 08/19/2026, 13:50:49 UTC
Last enriched: 08/19/2026, 14:21:28 UTC
Last updated: 08/20/2026, 02:52:00 UTC
Views: 5
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