Is CVE-2007-4240 being actively exploited?

CVE-2007-4240 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2007-4240?

CVE-2007-4240 has a CVSS 2.0 base score of 7.5 (HIGH).

CVE-2007-4240

HIGH · CVSS 7.5EPSS 1.4%EU EUVD

The check_logout function in class/auth.php in Help Center Live (hcl) 2.1.3a sends a redirect to the web browser but does not exit when administrative credentials are missing, which allows remote attackers to delete administrative users and have other unspecified impact via certain requests to (1) admin/departments.php, (2) admin/operators.php, and other unspecified scripts. NOTE: some of these details are obtained from third party information.

Key facts

CVSS score: 7.5 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS score: 1.4% (72th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2007-4223)
Published: August 8, 2007
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2007-4223 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

help center live / help center live

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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