How severe is CVE-2025-4951?

CVE-2025-4951 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-4951 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.

What products are affected by CVE-2025-4951?

CVE-2025-4951 affects Rapid7 Appspider Pro. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4951?

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

Does CVE-2025-4951 have an EU (EUVD) identifier?

Yes. CVE-2025-4951 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15823.

When was CVE-2025-4951 published?

CVE-2025-4951 was published on 2025-05-20 and last updated on 2026-06-17.

CVE-2025-4951

CVE-2025-4951 is a medium-severity vulnerability in Rapid7 Appspider Pro with a CVSS 3.x base score of 4.6. 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 4.6)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-15823
Weakness: CWE-79
Affected product: Rapid7 Appspider Pro
Published: 2025-05-20
Last modified: 2026-06-17

Description

Editions of Rapid7 AppSpider Pro before version 7.5.018 is vulnerable to a stored cross-site scripting vulnerability in the "ScanName" field. Despite the application preventing the inclusion of special characters within the "ScanName" field, this could be bypassed by modifying the configuration file directly. This is fixed as of version 7.5.018

Frequently asked questions

What is CVE-2025-4951?: Editions of Rapid7 AppSpider Pro before version 7.5.018 is vulnerable to a stored cross-site scripting vulnerability in the "ScanName" field. Despite the application preventing the inclusion of special characters within the "ScanName" field, this could be bypassed by modifying the configuration file directly. This is fixed as of version 7.5.018
How severe is CVE-2025-4951?: CVE-2025-4951 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-4951 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.
What products are affected by CVE-2025-4951?: CVE-2025-4951 affects Rapid7 Appspider Pro. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4951?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-4951 have an EU (EUVD) identifier?: Yes. CVE-2025-4951 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15823.
When was CVE-2025-4951 published?: CVE-2025-4951 was published on 2025-05-20 and last updated on 2026-06-17.

References

https://docs.rapid7.com/release-notes/appspider/20250516/

Affected products (1)

cpe:2.3:a:rapid7:appspider_pro:*:*:*:*:*:*:*:*

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