How severe is CVE-2006-4889?

CVE-2006-4889 has a CVSS 2.0 base score of 5.1, rated medium severity.

Is CVE-2006-4889 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4889?

CVE-2006-4889 primarily affects Telekorn Signkorn Guestbook. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-4889?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-4889 published?

CVE-2006-4889 was published on 2006-09-19 and last updated on 2026-06-16.

CVE-2006-4889

CVE-2006-4889 is a medium-severity vulnerability in Telekorn Signkorn Guestbook with a CVSS 2.0 base score of 5.1. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.1)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Telekorn Signkorn Guestbook
Published: 2006-09-19
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2006-4889?: 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.
How severe is CVE-2006-4889?: CVE-2006-4889 has a CVSS 2.0 base score of 5.1, rated medium severity.
Is CVE-2006-4889 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4889?: CVE-2006-4889 primarily affects Telekorn Signkorn Guestbook. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4889?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4889 published?: CVE-2006-4889 was published on 2006-09-19 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:telekorn:signkorn_guestbook:*:*:*:*:*:*:*:*
cpe:2.3:a:telekorn:signkorn_guestbook:1.1:*:*:*:*:*:*:*
cpe:2.3:a:telekorn:signkorn_guestbook:1.2:*:*:*:*:*:*:*

More vulnerabilities in Telekorn Signkorn Guestbook

CVE-2006-4788 — Medium (CVSS 5.1): PHP remote file inclusion vulnerability in includes/log.inc.php in Telekorn SignKorn Guestbook (SL) 1.3 and earlier,…

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