How severe is CVE-2025-56515?

CVE-2025-56515 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-56515 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56515?

CVE-2025-56515 affects Suisuijiang Fiora. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56515?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-56515 have an EU (EUVD) identifier?

Yes. CVE-2025-56515 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32705.

When was CVE-2025-56515 published?

CVE-2025-56515 was published on 2025-10-01 and last updated on 2026-06-17.

CVE-2025-56515

CVE-2025-56515 is a high-severity vulnerability in Suisuijiang Fiora with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32705
Weakness: CWE-79
Affected product: Suisuijiang Fiora
Published: 2025-10-01
Last modified: 2026-06-17

Description

File upload vulnerability in Fiora chat application 1.0.0 through user avatar upload functionality. The application fails to validate SVG file content, allowing malicious SVG files with embedded foreignObject elements containing iframe tags and JavaScript event handlers (onmouseover) to be uploaded and stored. When rendered, these SVG files execute arbitrary JavaScript, enabling attackers to steal user sessions, cookies, and perform unauthorized actions in the context of users viewing affected profiles.

Frequently asked questions

What is CVE-2025-56515?: File upload vulnerability in Fiora chat application 1.0.0 through user avatar upload functionality. The application fails to validate SVG file content, allowing malicious SVG files with embedded foreignObject elements containing iframe tags and JavaScript event handlers (onmouseover) to be uploaded and stored. When rendered, these SVG files execute arbitrary JavaScript, enabling attackers to steal user sessions, cookies, and perform unauthorized actions in the context of users viewing affected profiles.
How severe is CVE-2025-56515?: CVE-2025-56515 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-56515 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56515?: CVE-2025-56515 affects Suisuijiang Fiora. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56515?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-56515 have an EU (EUVD) identifier?: Yes. CVE-2025-56515 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32705.
When was CVE-2025-56515 published?: CVE-2025-56515 was published on 2025-10-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:suisuijiang:fiora:1.0.0:*:*:*:*:*:*:*

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