How severe is CVE-2021-47732?

CVE-2021-47732 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-47732 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-47732?

CVE-2021-47732 affects Cmsimple. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-47732?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2021-47732 have an EU (EUVD) identifier?

Yes. CVE-2021-47732 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204837.

When was CVE-2021-47732 published?

CVE-2021-47732 was published on 2025-12-23 and last updated on 2026-06-17.

CVE-2021-47732

CVE-2021-47732 is a medium-severity vulnerability in Cmsimple with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 5.1
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204837
Weakness: CWE-79
Affected product: Cmsimple
Published: 2025-12-23
Last modified: 2026-06-17

Description

CMSimple 5.2 contains a stored cross-site scripting vulnerability in the Filebrowser External input field that allows attackers to inject malicious JavaScript. Attackers can place unfiltered JavaScript code that executes when users click on Page or Files tabs, enabling persistent script injection.

Frequently asked questions

What is CVE-2021-47732?: CMSimple 5.2 contains a stored cross-site scripting vulnerability in the Filebrowser External input field that allows attackers to inject malicious JavaScript. Attackers can place unfiltered JavaScript code that executes when users click on Page or Files tabs, enabling persistent script injection.
How severe is CVE-2021-47732?: CVE-2021-47732 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-47732 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-47732?: CVE-2021-47732 affects Cmsimple. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-47732?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-47732 have an EU (EUVD) identifier?: Yes. CVE-2021-47732 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204837.
When was CVE-2021-47732 published?: CVE-2021-47732 was published on 2025-12-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cmsimple:cmsimple:5.2:*:*:*:*:*:*:*

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