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CVE-2025-63417

Selfbest cross-site scripting (XSS)

7.2 HIGHPublic exploitEPSS 0.25%
  1. Published5 Nov 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Affected products

Selfbest2023.3

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-63417 being actively exploited?

CVE-2025-63417 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.25%.

How severe is CVE-2025-63417?

CVE-2025-63417 has a CVSS 3.1 base score of 7.2, rated high. EPSS estimates a 0.25% probability of exploitation.

Which products are affected by CVE-2025-63417?

Affected products include Selfbest.

How do I fix CVE-2025-63417?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-63417 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.