How severe is CVE-2025-63417?

CVE-2025-63417 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-63417 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-2025-63417?

CVE-2025-63417 affects Selfbest. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63417?

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-2025-63417 have an EU (EUVD) identifier?

Yes. CVE-2025-63417 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37918.

When was CVE-2025-63417 published?

CVE-2025-63417 was published on 2025-11-05 and last updated on 2026-06-17.

CVE-2025-63417

CVE-2025-63417 is a high-severity vulnerability in Selfbest with a CVSS 3.x base score of 7.2. 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 7.2)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37918
Weakness: CWE-79
Affected product: Selfbest
Published: 2025-11-05
Last modified: 2026-06-17

Description

A Stored Cross-Site Scripting (XSS) vulnerability in the chat functionality of the SelfBest platform 2023.3 allows authenticated attackers to inject arbitrary web scripts or HTML via the chat message input field. This malicious content is stored and then executed in the context of other users' browsers when they view the malicious message, potentially leading to session hijacking, account takeover, or other client-side attacks.

Frequently asked questions

What is CVE-2025-63417?: A Stored Cross-Site Scripting (XSS) vulnerability in the chat functionality of the SelfBest platform 2023.3 allows authenticated attackers to inject arbitrary web scripts or HTML via the chat message input field. This malicious content is stored and then executed in the context of other users' browsers when they view the malicious message, potentially leading to session hijacking, account takeover, or other client-side attacks.
How severe is CVE-2025-63417?: CVE-2025-63417 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-63417 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-2025-63417?: CVE-2025-63417 affects Selfbest. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63417?: 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-2025-63417 have an EU (EUVD) identifier?: Yes. CVE-2025-63417 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37918.
When was CVE-2025-63417 published?: CVE-2025-63417 was published on 2025-11-05 and last updated on 2026-06-17.

References

https://rohitchaudhary045.medium.com/cve-2025-63417-the-chatroom-compromise-stored-xss-in-selfbest-platform-f34ddcd984ea

Affected products (1)

cpe:2.3:a:selfbest:selfbest:2023.3:*:*:*:*:*:*:*

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CVE-2025-63416 — Critical (CVSS 9.1): ** exclusively-hosted-service ** A Stored Cross-Site Scripting (XSS) vulnerability in the chat functionality of the…
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