What is the CVSS score of CVE-2021-47860?

CVE-2021-47860 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Getsimplecms are affected by CVE-2021-47860?

Organizations using GetSimple CMS Custom JS 0.1 plugin should be aware of moderate risk from CVE-2021-47860, a cross-site request forgery vulnerability rated CVSS 5.3.

Is there a public PoC exploit available for CVE-2021-47860?

Yes, a public proof-of-concept exploit is available for CVE-2021-47860. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2021-47860?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify anti-CSRF tokens are enforced.

Getsimplecms CVE-2021-47860

MEDIUM

Cross-Site Request Forgery (CSRF) (CWE-352)

2026-01-21 disclosure@vulncheck.com

XSS CSRF Getsimplecms Get Simple

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Mar 06, 2026 - 20:10 vuln.today

Public exploit code

CVE Published

Jan 21, 2026 - 18:16 nvd

MEDIUM 5.3

DescriptionCVE.org

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.

AnalysisAI

Technical ContextAI

Classified as CWE-352 (Cross-Site Request Forgery (CSRF)). Affects Getsimplecms. 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.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.