How severe is CVE-2006-1896?

CVE-2006-1896 has a CVSS 2.0 base score of 6.0, rated medium severity.

Is CVE-2006-1896 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-1896?

CVE-2006-1896 affects Phpbb Group Phpbb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-1896?

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

When was CVE-2006-1896 published?

CVE-2006-1896 was published on 2006-04-20 and last updated on 2026-06-16.

CVE-2006-1896

CVE-2006-1896 is a medium-severity vulnerability in Phpbb Group Phpbb with a CVSS 2.0 base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Medium (CVSS 2.0 base score 6.0)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Phpbb Group Phpbb
Published: 2006-04-20
Last modified: 2026-06-16

Description

Unspecified vulnerability in phpBB allows remote authenticated users with Administration Panel access to execute arbitrary PHP code via crafted Font Colour 3 ($theme[fontcolor3] variable) and/or signature values, possibly involving the highlight functionality. NOTE: the original report does not clarify whether this issue is static code injection, eval injection, or another type of vulnerability.

Frequently asked questions

What is CVE-2006-1896?: Unspecified vulnerability in phpBB allows remote authenticated users with Administration Panel access to execute arbitrary PHP code via crafted Font Colour 3 ($theme[fontcolor3] variable) and/or signature values, possibly involving the highlight functionality. NOTE: the original report does not clarify whether this issue is static code injection, eval injection, or another type of vulnerability.
How severe is CVE-2006-1896?: CVE-2006-1896 has a CVSS 2.0 base score of 6.0, rated medium severity.
Is CVE-2006-1896 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-1896?: CVE-2006-1896 affects Phpbb Group Phpbb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-1896?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-1896 published?: CVE-2006-1896 was published on 2006-04-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:phpbb_group:phpbb:*:*:*:*:*:*:*:*

More vulnerabilities in Phpbb Group Phpbb

CVE-2007-1695 — Critical (CVSS 10.0): PHP remote file inclusion vulnerability in includes/usercp_register.php in phpBB 2.0.19 allows remote attackers to…
CVE-2006-6840 — Critical (CVSS 10.0): Unspecified vulnerability in phpBB before 2.0.22 has unknown impact and remote attack vectors related to a "negative…
CVE-2006-6839 — Critical (CVSS 10.0): Unspecified vulnerability in phpBB before 2.0.22 has unknown impact and remote attack vectors related to "criteria for…
CVE-2006-6841 — Critical (CVSS 10.0): Certain forms in phpBB before 2.0.22 lack session checks, which has unknown impact and remote attack vectors.
CVE-2002-1537 — Critical (CVSS 10.0): admin_ug_auth.php in phpBB 2.0.0 allows local users to gain administrator privileges by directly calling…
CVE-2002-2176 — Critical (CVSS 10.0): SQL injection vulnerability in Gender MOD 1.1.3 allows remote attackers to gain administrative access via the…

All CVEs affecting Phpbb Group Phpbb →

Other CWE-94 (Code Injection) vulnerabilities

CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

Browse all CWE-94 (Code Injection) vulnerabilities →