How severe is CVE-2007-6640?

CVE-2007-6640 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2007-6640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-6640?

CVE-2007-6640 primarily affects Sourceforge Creammonkey. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-6640?

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

When was CVE-2007-6640 published?

CVE-2007-6640 was published on 2008-01-04 and last updated on 2026-06-16.

CVE-2007-6640

CVE-2007-6640 is a medium-severity vulnerability in Sourceforge Creammonkey with a CVSS 2.0 base score of 6.4. 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Sourceforge Creammonkey
Published: 2008-01-04
Last modified: 2026-06-16

Description

Creammonkey 0.9 through 1.1 and GreaseKit 1.2 through 1.3 does not properly prevent access to dangerous functions, which allows remote attackers to read the configuration, modify the configuration, or send an HTTP request via the (1) GM_addStyle, (2) GM_log, (3) GM_openInTab, (4) GM_setValue, (5) GM_getValue, or (6) GM_xmlhttpRequest function within a web page on which a userscript is configured.

Frequently asked questions

What is CVE-2007-6640?: Creammonkey 0.9 through 1.1 and GreaseKit 1.2 through 1.3 does not properly prevent access to dangerous functions, which allows remote attackers to read the configuration, modify the configuration, or send an HTTP request via the (1) GM_addStyle, (2) GM_log, (3) GM_openInTab, (4) GM_setValue, (5) GM_getValue, or (6) GM_xmlhttpRequest function within a web page on which a userscript is configured.
How severe is CVE-2007-6640?: CVE-2007-6640 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2007-6640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-6640?: CVE-2007-6640 primarily affects Sourceforge Creammonkey. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-6640?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-6640 published?: CVE-2007-6640 was published on 2008-01-04 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:sourceforge:creammonkey:0.9:*:*:*:*:*:*:*
cpe:2.3:a:sourceforge:creammonkey:1.0:*:*:*:*:*:*:*
cpe:2.3:a:sourceforge:creammonkey:1.1:*:*:*:*:*:*:*
cpe:2.3:a:sourceforge:greasekit:1.2:*:*:*:*:*:*:*
cpe:2.3:a:sourceforge:greasekit:1.3:*:*:*:*:*:*:*

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