THREATPORT/VULNERABILITY/CVE-2006-4889
MEDIUM SEVERITY

CVE-2006-4889

Signkorn Guestbook vulnerability

CVSS
5.1
EPSS
10.2%
EPSS pct
95th
Exploited
No known
Multiple PHP remote file inclusion vulnerabilities in Telekorn SignKorn Guestbook (SL) 1.3 and earlier, when register_globals is enabled, allow remote attackers to execute arbitrary PHP code via a URL in the dir_path parameter in (1) index.php, (2) includes/functions.gb.php, (3) includes/functions.admin.php, (4) includes/admin.inc.php, (5) help.php, (6) smile.php, (7) entry.php; (8) adminhelp0.php, (9) adminhelp1.php, (10) adminhelp2.php, and (11) adminhelp3.php in (a) help/en and (b) help/de directories; and the (12) preview.php, (13) log.php, (14) index.php, (15) config.php, and (16) admin.php in the (c) admin directory, a different set of vectors than CVE-2006-4788.
Affected vendor
Telekorn
Affected product
Signkorn Guestbook
CVSS vector
AV:N/AC:H/Au:N/C:P/I:P/A:P
Published
2006-09-19

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 10.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2006-4889

  • Confirm whether Telekorn Signkorn Guestbook is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2006-4889.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-4889

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2006-4889 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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