How severe is CVE-2011-4830?

CVE-2011-4830 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2011-4830 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4830?

CVE-2011-4830 affects Barter-sites Com Listing. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4830?

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

When was CVE-2011-4830 published?

CVE-2011-4830 was published on 2011-12-15 and last updated on 2026-06-16.

CVE-2011-4830

CVE-2011-4830 is a low-severity vulnerability in Barter-sites Com Listing with a CVSS 2.0 base score of 3.5. 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: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Barter-sites Com Listing
Published: 2011-12-15
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in the com_listing component in Barter Sites component 1.3 for Joomla! allow remote authenticated users to inject arbitrary web script or HTML via the (1) listing_title, (2) description, (3) homeurl (aka Website Address), (4) paystring (aka Payment types accepted), (5) sell_price, (6) shipping_cost, and (7) quantity parameters to index.php.

Frequently asked questions

What is CVE-2011-4830?: Multiple cross-site scripting (XSS) vulnerabilities in the com_listing component in Barter Sites component 1.3 for Joomla! allow remote authenticated users to inject arbitrary web script or HTML via the (1) listing_title, (2) description, (3) homeurl (aka Website Address), (4) paystring (aka Payment types accepted), (5) sell_price, (6) shipping_cost, and (7) quantity parameters to index.php.
How severe is CVE-2011-4830?: CVE-2011-4830 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2011-4830 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4830?: CVE-2011-4830 affects Barter-sites Com Listing. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4830?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4830 published?: CVE-2011-4830 was published on 2011-12-15 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:barter-sites:com_listing:1.3:*:*:*:*:*:*:*

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