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Fencer Intel
medium 4.3

CVE-2012-4242 json

Cross-site scripting (XSS) vulnerability in the MF Gig Calendar plugin 0.9.2 for WordPress allows remote attackers to inject arbitrary web…

published 2012-10-01 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4186

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.3%
EPSS 9.3% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

Cross-site scripting (XSS) vulnerability in the MF Gig Calendar plugin 0.9.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the query string to the calendar page.

Timeline

  1. First public exploit (EDB-37829)
  2. Published

Exploit prediction

9.28% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-37829 WordPress Plugin MF Gig Calendar - Cross-Site Scripting webapps, 2012-09-20
  • Nuclei template WordPress Plugin MF Gig Calendar 0.9.2 - Cross-Site Scripting nuclei detection template
  • reactionpenetrationtesting.co.uk http://www.reactionpenetrationtesting.co.uk/mf-gig-calendar-xss.html 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.