Privilege escalation in Episerver Ektron Cms

CVE-2018-12596

Episerver Ektron CMS before 9.0 SP3 Site CU 31, 9.1 before SP3 Site CU 45, or 9.2 before SP2 Site CU 22 allows remote attackers to call aspx pages via the "activateuser.aspx" page, even if a page is located under the /WorkArea/ path, which is forbidden (normally available exclusively for local admins).

Vulnerability class: Privilege Escalation

EPSS: 0.224 (97.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Exploit, Patch, VDB Entry, Third Party Advisory, exploit, Mitigation, x_refsource_EXPLOIT-DB)
  • cve@mitre.org (mailing-list, Exploit, Patch, x_refsource_FULLDISC, Mailing List, Third Party Advisory, Mitigation)
  • cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (x_refsource_MISC)

Frequently asked questions

What is CVE-2018-12596?
CVE-2018-12596 is a critical-severity vulnerability in Episerver Ektron Cms, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2018-10-10.
How severe is CVE-2018-12596?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-12596 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.