How severe is CVE-2012-5358?

CVE-2012-5358 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2012-5358 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-5358?

CVE-2012-5358 affects Ektron Ektron Content Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-5358?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2012-5358 published?

CVE-2012-5358 was published on 2017-10-30 and last updated on 2026-06-16.

CVE-2012-5358

CVE-2012-5358 is a critical-severity vulnerability in Ektron Ektron Content Management System with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-19.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Ektron Ektron Content Management System
Published: 2017-10-30
Last modified: 2026-06-16

Description

The XSLTCompiledTransform function in Ektron Content Management System (CMS) before 8.02 SP5 configures the XSL with enableDocumentFunction set to true, which allows remote attackers to read arbitrary files and consequently bypass authentication, modify viewstate, cause a denial of service, or possibly have unspecified other impact via crafted XSL data.

Frequently asked questions

What is CVE-2012-5358?: The XSLTCompiledTransform function in Ektron Content Management System (CMS) before 8.02 SP5 configures the XSL with enableDocumentFunction set to true, which allows remote attackers to read arbitrary files and consequently bypass authentication, modify viewstate, cause a denial of service, or possibly have unspecified other impact via crafted XSL data.
How severe is CVE-2012-5358?: CVE-2012-5358 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2012-5358 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5358?: CVE-2012-5358 affects Ektron Ektron Content Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-5358?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-5358 published?: CVE-2012-5358 was published on 2017-10-30 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ektron:ektron_content_management_system:*:sp4:*:*:*:*:*:*

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