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Fencer Intel
medium 4.3

CVE-2010-4837 json

Cross-site scripting (XSS) vulnerability in the JSupport (com_jsupport) component 1.5.6 for Joomla!

published 15y ago modified 4mo ago also EUVD-2010-4802

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
1
Exploit-DB

Summary

Cross-site scripting (XSS) vulnerability in the JSupport (com_jsupport) component 1.5.6 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the subject parameter (title field) in a saveTicket action to index2.php. NOTE: some of these details are obtained from third party information.

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Timeline

  1. First public exploit (EDB-15501)
  2. Published

Exploit prediction

1.53% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-15501 Joomla! Component JSupport 1.5.6 - Cross-Site Scripting webapps, 2010-11-12
  • xenuser.org http://www.xenuser.org/documents/security/Joomla_com_jsupport_XSS.txt referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.org http://packetstormsecurity.org/files/view/95796/joomlajsupport-xss.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/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.