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Fencer Intel
critical 9.8

CVE-2012-5357 in the critical feed json

Ektron Content Management System (CMS) before 8.02 SP5 uses the XslCompiledTransform class with enablescript set to true, which allows remo…

published 2017-10-30 9 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5278

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
67.8%
EPSS 67.8% chance of exploitation in 30 days, percentile 99.3%
public exploits
2
Metasploit, Exploit-DB

Summary

Ektron Content Management System (CMS) before 8.02 SP5 uses the XslCompiledTransform class with enablescript set to true, which allows remote attackers to execute arbitrary code with NETWORK SERVICE privileges via crafted XSL data.

Timeline

  1. First public exploit (Metasploit exploit/windows/http/ektron_xslt_exec)
  2. Published

Exploit prediction

67.78% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/windows/http/ektron_xslt_exec Ektron 8.02 XSLT Transform Remote Code Execution metasploit exploit, excellent rank, 2012-10-16
  • EDB-23155 Ektron 8.02 - XSLT Transform Remote Code Execution (Metasploit) remote, 2012-12-05
  • webstersprodigy.net https://webstersprodigy.net/2012/10/25/cve-2012-5357cve-1012-5358-cool-ektron-xslt-rce-bugs/ referenced PoC, tagged "exploit" by a source, unverified
  • rapid7.com https://www.rapid7.com/db/modules/exploit/windows/http/ektron_xslt_exec referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-19 Data Processing Errors

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.