How severe is CVE-2007-3778?

CVE-2007-3778 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2007-3778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3778?

CVE-2007-3778 primarily affects Squirrelmail Gpg Plugin. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-3778?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2007-3778 published?

CVE-2007-3778 was published on 2007-07-15 and last updated on 2026-06-16.

CVE-2007-3778

CVE-2007-3778 is a high-severity vulnerability in Squirrelmail Gpg Plugin with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Squirrelmail Gpg Plugin
Published: 2007-07-15
Last modified: 2026-06-16

Description

The G/PGP (GPG) Plugin 2.0, and 2.1dev before 20060912, for Squirrelmail allows remote attackers to execute arbitrary commands via shell metacharacters in the messageSignedText parameter to the gpg_check_sign_pgp_mime function in gpg_hook_functions.php. NOTE: a parameter value can be set in the contents of an e-mail message.

Frequently asked questions

What is CVE-2007-3778?: The G/PGP (GPG) Plugin 2.0, and 2.1dev before 20060912, for Squirrelmail allows remote attackers to execute arbitrary commands via shell metacharacters in the messageSignedText parameter to the gpg_check_sign_pgp_mime function in gpg_hook_functions.php. NOTE: a parameter value can be set in the contents of an e-mail message.
How severe is CVE-2007-3778?: CVE-2007-3778 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2007-3778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3778?: CVE-2007-3778 primarily affects Squirrelmail Gpg Plugin. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2007-3778 published?: CVE-2007-3778 was published on 2007-07-15 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:squirrelmail:gpg_plugin:2.0:*:*:*:*:*:*:*
cpe:2.3:a:squirrelmail:gpg_plugin:2.1_dev:*:*:*:*:*:*:*

More vulnerabilities in Squirrelmail Gpg Plugin

CVE-2005-1924 — Critical (CVSS 9.3): The G/PGP (GPG) Plugin 2.1 and earlier for Squirrelmail allow remote authenticated users to execute arbitrary commands…
CVE-2007-3636 — High (CVSS 7.5): Multiple unspecified vulnerabilities in the G/PGP (GPG) Plugin 2.1 for Squirrelmail allow remote attackers to execute…
CVE-2007-3634 — Medium (CVSS 6.5): Unspecified vulnerability in the G/PGP (GPG) Plugin 2.0 for Squirrelmail 1.4.10a allows remote authenticated users to…
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CVE-2007-3779 — Medium (CVSS 4.3): PHP local file inclusion vulnerability in gpg_pop_init.php in the G/PGP (GPG) Plugin before 20070707 for Squirrelmail…
CVE-2007-3635 — Medium (CVSS 4.3): Multiple unspecified vulnerabilities in the G/PGP (GPG) Plugin before 2.1 for Squirrelmail might allow "local…

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