How severe is CVE-2010-2477?

CVE-2010-2477 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-2477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-2477?

CVE-2010-2477 primarily affects Pythonpaste Paste. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-2477?

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

When was CVE-2010-2477 published?

CVE-2010-2477 was published on 2010-11-06 and last updated on 2026-06-16.

CVE-2010-2477

CVE-2010-2477 is a medium-severity vulnerability in Pythonpaste Paste with a CVSS 2.0 base score of 4.3. 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-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Pythonpaste Paste
Published: 2010-11-06
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in the paste.httpexceptions implementation in Paste before 1.7.4 allow remote attackers to inject arbitrary web script or HTML via vectors involving a 404 status code, related to (1) paste.urlparser.StaticURLParser, (2) paste.urlparser.PkgResourcesParser, (3) paste.urlmap.URLMap, and (4) HTTPNotFound.

Frequently asked questions

What is CVE-2010-2477?: Multiple cross-site scripting (XSS) vulnerabilities in the paste.httpexceptions implementation in Paste before 1.7.4 allow remote attackers to inject arbitrary web script or HTML via vectors involving a 404 status code, related to (1) paste.urlparser.StaticURLParser, (2) paste.urlparser.PkgResourcesParser, (3) paste.urlmap.URLMap, and (4) HTTPNotFound.
How severe is CVE-2010-2477?: CVE-2010-2477 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-2477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-2477?: CVE-2010-2477 primarily affects Pythonpaste Paste. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-2477?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-2477 published?: CVE-2010-2477 was published on 2010-11-06 and last updated on 2026-06-16.

References

Affected products (22)

cpe:2.3:a:pythonpaste:paste:*:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:0.3:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:0.5:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:0.9.2:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.1:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.2:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.3:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.4:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.5:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.6:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.7:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.7.1:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.7.2:*:*:*:*:*:*:*
cpe:2.3:a:pythonpaste:paste:1.7.3:*:*:*:*:*:*:*

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