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Vulnerability record · CVE-2007-1991 · published 12 April 2007

CVE-2007-1991: Youngzsoft cmailserver vulnerability

Youngzsoft · Cmailserver

Cross-site scripting (XSS) vulnerability in mail/signup.asp in CmailServer WebMail 5.4.3, and possibly earlier, allows remote attackers to inject arbitrary web script or HTML via the Comment parameter, a different vector than CVE-2007-1927.

4.3 CVSS 2.0 Medium EPSS 1.0% · top 38.0%
4.3CVSS 2.0 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

Cross-site scripting (XSS) vulnerability in mail/signup.asp in CmailServer WebMail 5.4.3, and possibly earlier, allows remote attackers to inject arbitrary web script or HTML via the Comment parameter, a different vector than CVE-2007-1927.

AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/24812 Vendor Advisory
http://www.securityfocus.com/bid/23363
https://exchange.xforce.ibmcloud.com/vulnerabilities/33501
http://secunia.com/advisories/24812 Vendor Advisory
http://www.securityfocus.com/bid/23363
https://exchange.xforce.ibmcloud.com/vulnerabilities/33501

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2004-1129Youngzsoft cmailserver vulnerabilitySQL injection vulnerability in (1) fdelmail.asp, (2) addressc.asp, and possibly (3) postmail.asp and (4) fmvmail.asp in CMailServer 5.2 allow remote …EPSS 1.9%10.0CVE-2003-0280Youngzsoft cmailserver vulnerabilityMultiple buffer overflows in the SMTP Service for ESMTP CMailServer 4.0.2003.03.27 allow remote attackers to execute arbitrary code via long (1) MAIL…EPSS 15%9.3CVE-2008-6922Youngzsoft cmailserver memory buffer overflow vulnerabilityMultiple stack-based buffer overflows in CMailCOM.dll in CMailServer 5.4.6 allow remote attackers to execute arbitrary code via a long argument to th…EPSS 9.3%7.5CVE-2002-0799Youngzsoft cmailserver vulnerabilityBuffer overflow in YoungZSoft CMailServer 3.30 allows remote attackers to execute arbitrary code via a long USER argument.EPSS 14%6.8CVE-2004-1130Youngzsoft cmailserver vulnerabilityCross-site scripting (XSS) vulnerability in admin.asp in CMailServer 5.2 allows remote attackers to execute arbitrary web script or HTML via personal…EPSS 1.3%4.3CVE-2007-1927Youngzsoft cmailserver vulnerabilityCross-site scripting (XSS) vulnerability in signup.asp in CmailServer WebMail 5.3.4 and earlier allows remote attackers to inject arbitrary web scrip…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2007-1991), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.