How severe is CVE-2021-47725?

CVE-2021-47725 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-47725 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2021-47725?

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

Does CVE-2021-47725 have an EU (EUVD) identifier?

Yes. CVE-2021-47725 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206078.

When was CVE-2021-47725 published?

CVE-2021-47725 was published on 2025-12-31 and last updated on 2026-06-17.

CVE-2021-47725

CVE-2021-47725 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v4: 4.8
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206078
Weakness: CWE-79
Published: 2025-12-31
Last modified: 2026-06-17

Description

STVS ProVision 5.9.10 contains a cross-site scripting vulnerability in the 'files' POST parameter that allows authenticated attackers to inject arbitrary HTML code. Attackers can exploit the unvalidated input to execute malicious scripts within a user's browser session in the context of the affected site.

Frequently asked questions

What is CVE-2021-47725?: STVS ProVision 5.9.10 contains a cross-site scripting vulnerability in the 'files' POST parameter that allows authenticated attackers to inject arbitrary HTML code. Attackers can exploit the unvalidated input to execute malicious scripts within a user's browser session in the context of the affected site.
How severe is CVE-2021-47725?: CVE-2021-47725 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-47725 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2021-47725?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-47725 have an EU (EUVD) identifier?: Yes. CVE-2021-47725 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206078.
When was CVE-2021-47725 published?: CVE-2021-47725 was published on 2025-12-31 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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