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Fencer Intel
medium 4.3

CVE-2012-5920 json

Cross-site scripting (XSS) vulnerability in Google Web Toolkit (GWT) 2.4 through 2.5 Final, as used in JBoss Operations Network (ON) 3.1.1…

published 2012-11-20 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5794

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in Google Web Toolkit (GWT) 2.4 through 2.5 Final, as used in JBoss Operations Network (ON) 3.1.1 and possibly other products, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. NOTE: this issue exists because of an incomplete fix for CVE-2012-4563.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-5920 updated cvss 4.3

GWT: unknown XSS flaw

  • Red Hat JBoss Operations Network 3 gwt gwt
    affected: no fix available
  • Red Hat JBoss Operations Network 3.1
    fixed: vendor fix RHSA-2013:0187

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

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.