How severe is CVE-2021-47860?

CVE-2021-47860 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-47860 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-47860?

CVE-2021-47860 affects Get-simple Getsimplecms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-47860?

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

Does CVE-2021-47860 have an EU (EUVD) identifier?

Yes. CVE-2021-47860 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3611.

When was CVE-2021-47860 published?

CVE-2021-47860 was published on 2026-01-21 and last updated on 2026-06-17.

CVE-2021-47860

CVE-2021-47860 is a medium-severity vulnerability in Get-simple Getsimplecms with a CVSS 3.x base score of 5.3. 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 8.5
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3611
Weakness: CWE-352
Affected product: Get-simple Getsimplecms
Published: 2026-01-21
Last modified: 2026-06-17

Description

GetSimple CMS Custom JS 0.1 plugin contains a cross-site request forgery vulnerability that allows unauthenticated attackers to inject arbitrary client-side code into administrator browsers. Attackers can craft a malicious website that triggers a cross-site scripting payload to execute remote code on the hosting server when an authenticated administrator visits the page.

Frequently asked questions

What is CVE-2021-47860?: GetSimple CMS Custom JS 0.1 plugin contains a cross-site request forgery vulnerability that allows unauthenticated attackers to inject arbitrary client-side code into administrator browsers. Attackers can craft a malicious website that triggers a cross-site scripting payload to execute remote code on the hosting server when an authenticated administrator visits the page.
How severe is CVE-2021-47860?: CVE-2021-47860 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-47860 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-47860?: CVE-2021-47860 affects Get-simple Getsimplecms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-47860?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-47860 have an EU (EUVD) identifier?: Yes. CVE-2021-47860 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3611.
When was CVE-2021-47860 published?: CVE-2021-47860 was published on 2026-01-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:get-simple:getsimplecms:0.1:*:*:*:*:*:*:*

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