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Fencer Intel
medium 4.3

CVE-2012-5903 json

Cross-site scripting (XSS) vulnerability in Simple Machines Forum (SMF) 2.0.2 allows remote attackers to inject arbitrary web script or HTM…

published 2012-11-17 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5777

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
1
Exploit-DB

Summary

Cross-site scripting (XSS) vulnerability in Simple Machines Forum (SMF) 2.0.2 allows remote attackers to inject arbitrary web script or HTML via the scheduled parameter to index.php.

Timeline

  1. First public exploit (EDB-37027)
  2. Published

Exploit prediction

1.62% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-37027 Simple Machines Forum (SMF) 2.0.2 - 'scheduled' Cross-Site Scripting webapps, 2012-03-29
  • packetstormsecurity.org http://packetstormsecurity.org/files/111356/SMF-2.0.2-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/52822 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.