CVE-2018-7486
CVE-2018-7486 is a high-severity vulnerability in Blueriver Muracms with a CVSS 3.x base score of 7.2. 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-22.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- CVSS v2: 6.5
- EPSS exploit prediction: 3% (83rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Blueriver Muracms
- Published:
- Last modified:
Description
Blue River Mura CMS before v7.0.7029 supports inline function calls with an [m] tag and [/m] end tag, without proper restrictions on file types or pathnames, which allows remote attackers to execute arbitrary code via an [m]$.dspinclude("../pathname/executable.jpeg")[/m] approach, where executable.jpeg contains ColdFusion Markup Language code. This can be exploited in conjunction with a CKFinder feature that allows file upload.
Frequently asked questions
- What is CVE-2018-7486?
- Blue River Mura CMS before v7.0.7029 supports inline function calls with an [m] tag and [/m] end tag, without proper restrictions on file types or pathnames, which allows remote attackers to execute arbitrary code via an [m]$.dspinclude("../pathname/executable.jpeg")[/m] approach, where executable.jpeg contains ColdFusion Markup Language code. This can be exploited in conjunction with a CKFinder feature that allows file upload.
- How severe is CVE-2018-7486?
- CVE-2018-7486 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-7486 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-7486?
- CVE-2018-7486 affects Blueriver Muracms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-7486?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-7486 published?
- CVE-2018-7486 was published on 2018-02-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:blueriver:muracms:*:*:*:*:*:*:*:*
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- CVE-2017-8302 — Medium (CVSS 5.4): Mura CMS 7.0.6967 allows admin/?muraAction= XSS attacks, related to admin/core/views/carch/list.cfm,…
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