CVE-2020-20691
CVE-2020-20691 is a medium-severity vulnerability in Monstra Monstra Cms with a CVSS 3.x base score of 6.5. 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-434.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Monstra Monstra Cms
- Published:
- Last modified:
Description
An issue in Monstra CMS v3.0.4 allows attackers to execute arbitrary web scripts or HTML via bypassing the file extension filter and uploading crafted HTML files.
Frequently asked questions
- What is CVE-2020-20691?
- An issue in Monstra CMS v3.0.4 allows attackers to execute arbitrary web scripts or HTML via bypassing the file extension filter and uploading crafted HTML files.
- How severe is CVE-2020-20691?
- CVE-2020-20691 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-20691 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-20691?
- CVE-2020-20691 affects Monstra Monstra Cms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-20691?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-20691 published?
- CVE-2020-20691 was published on 2021-09-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:monstra:monstra_cms:3.0.4:*:*:*:*:*:*:*
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