How severe is CVE-2013-2311?

CVE-2013-2311 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2013-2311 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-2013-2311?

CVE-2013-2311 primarily affects Web2py. In total, 151 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-2311?

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

When was CVE-2013-2311 published?

CVE-2013-2311 was published on 2013-05-22 and last updated on 2026-06-16.

CVE-2013-2311

CVE-2013-2311 is a medium-severity vulnerability in Web2py 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: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Web2py
Published: 2013-05-22
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in static/js/share.js (aka the social bookmarking widget) in Web2py before 2.3.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2013-2311?: Cross-site scripting (XSS) vulnerability in static/js/share.js (aka the social bookmarking widget) in Web2py before 2.3.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2013-2311?: CVE-2013-2311 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2013-2311 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-2013-2311?: CVE-2013-2311 primarily affects Web2py. In total, 151 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-2311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-2311 published?: CVE-2013-2311 was published on 2013-05-22 and last updated on 2026-06-16.

References

Affected products (151)

cpe:2.3:a:web2py:web2py:*:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.16.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.17.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.18.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.19.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.20.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.21.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.22.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.23.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.24.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.25.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.26.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.27.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.28.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.29.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.30.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.31.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.40.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.41.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.42.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.43.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.44.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.45.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.46.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.47.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.48.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.49.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.50.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.51.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.52.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.53.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.54.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.55.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.56.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.56.1:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.56.2:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.56.3:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.56.4:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.57.0:*:*:*:*:*:*:*
cpe:2.3:a:web2py:web2py:1.58.0:*:*:*:*:*:*:*

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