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Fencer Intel
medium 4.3

CVE-2012-4000 json

Cross-site scripting (XSS) vulnerability in the print_textinputs_var function in editor/dialog/fck_spellerpages/spellerpages/server-scripts…

published 2012-07-12 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-3944

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.3%
EPSS 4.3% chance of exploitation in 30 days, percentile 91%
public exploits
1
Exploit-DB

Summary

Cross-site scripting (XSS) vulnerability in the print_textinputs_var function in editor/dialog/fck_spellerpages/spellerpages/server-scripts/spellchecker.php in FCKeditor 2.6.7 and earlier allows remote attackers to inject arbitrary web script or HTML via textinputs array parameters.

Timeline

  1. First public exploit (EDB-37457)
  2. Published

Exploit prediction

4.25% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-37457 FCKEditor Core - 'Editor 'spellchecker.php' Cross-Site Scripting webapps, 2012-06-25
  • disse.cting.org http://disse.cting.org/blog/2012/06/22/fckeditor-reflected-xss-vulnerability/ referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/54188 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.