CVE-2006-2158 — Dynamic variable evaluation vulnerability in index.php in Stadtaus Guestbook Script 1.7 and earlier, when register_globals is enabled, allows remote attackers to modify arbitrary program variables via parameters, which are evaluated as PHP variable variables, as demonstrated by performing PHP remote file inclusion using the include_files array parameter

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MEDIUM

Dynamic variable evaluation vulnerability in index.php in Stadtaus Guestbook Script 1.7 and earlier, when register_globals is enabled, allows remote attackers to modify arbitrary program variables via parameters, which are evaluated as PHP variable variables, as demonstrated by performing PHP remote file inclusion using the include_files array parameter

Published May 3, 2006

6.4

MEDIUM

CVSS 2.0

EPSS 1.60%

Description

Dynamic variable evaluation vulnerability in index.php in Stadtaus Guestbook Script 1.7 and earlier, when register_globals is enabled, allows remote attackers to modify arbitrary program variables via parameters, which are evaluated as PHP variable variables, as demonstrated by performing PHP remote file inclusion using the include_files array parameter.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.60% 0.01603

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01603

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.60% (0.01603)	74.95th	v5 (v2026.06.15)
Jun 15, 2026	1.60% (0.01603)	72.60th	v5 (v2026.06.15)
Mar 17, 2025	0.57% (0.00574)	66.80th	v4 (v2025.03.14)
Dec 12, 2024	1.61% (0.01613)	87.96th	v3 (v2023.03.01)
Jun 6, 2024	1.14% (0.01143)	84.77th	v3 (v2023.03.01)
Jun 29, 2023	1.14% (0.01143)	82.77th	v3 (v2023.03.01)
Apr 14, 2023	1.41% (0.01407)	84.42th	v3 (v2023.03.01)
Mar 7, 2023	1.12% (0.01119)	82.36th	v3 (v2023.03.01)
Mar 6, 2023	1.32% (0.01319)	71.27th	v2 (v2022.01.01)
Feb 23, 2023	1.32% (0.01319)	71.23th	v2 (v2022.01.01)
Apr 1, 2022	1.32% (0.01319)	69.22th	v2 (v2022.01.01)
Feb 4, 2022	1.32% (0.01319)	44.98th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (6)

http://retrogod.altervista.org/gbs_17_xpl_pl.html
x_refsource_MISC
http://secunia.com/advisories/19957
third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/bid/17845
vdb-entryx_refsource_BID
http://www.stadtaus.com/forum/t-2600.html
x_refsource_MISC
http://www.vupen.com/english/advisories/2006/1660
vdb-entryx_refsource_VUPEN
https://exchange.xforce.ibmcloud.com/vulnerabilities/26252
vdb-entryx_refsource_XF

Link	Providers	Tags
http://retrogod.altervista.org/gbs_17_xpl_pl.html		x_refsource_MISC
http://secunia.com/advisories/19957		third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/bid/17845		vdb-entryx_refsource_BID
http://www.stadtaus.com/forum/t-2600.html		x_refsource_MISC
http://www.vupen.com/english/advisories/2006/1660		vdb-entryx_refsource_VUPEN
https://exchange.xforce.ibmcloud.com/vulnerabilities/26252		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published May 3, 2006

Updated Aug 7, 2024

Reserved May 3, 2006

Link CVE-2006-2158

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2006-2158

Red Hat

Severity n/a

Public date n/a

Links CVE-2006-2158