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Fencer Intel
low 3.5

CVE-2011-4830 json

Multiple cross-site scripting (XSS) vulnerabilities in the com_listing component in Barter Sites component 1.3 for Joomla!

published 2011-12-15 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4748

cvss
3.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
1
Exploit-DB

Summary

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.

Timeline

  1. First public exploit (EDB-18046)
  2. Published

Exploit prediction

1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-18046 Joomla! Component Barter Sites 1.3 - Multiple Vulnerabilities webapps, 2011-10-29

CVSS scores

assigned by version score vector
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.