How severe is CVE-2025-51504?

CVE-2025-51504 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2025-51504 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-51504?

CVE-2025-51504 affects Microweber. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-51504?

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-2025-51504 have an EU (EUVD) identifier?

Yes. CVE-2025-51504 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23365.

When was CVE-2025-51504 published?

CVE-2025-51504 was published on 2025-08-01 and last updated on 2026-06-17.

CVE-2025-51504

CVE-2025-51504 is a high-severity vulnerability in Microweber with a CVSS 3.x base score of 7.6. 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: High (CVSS 3.x base score 7.6)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23365
Weakness: CWE-79
Affected product: Microweber
Published: 2025-08-01
Last modified: 2026-06-17

Description

Microweber CMS 2.0 is vulnerable to Cross Site Scripting (XSS)in the /projects/profile, homepage endpoint via the last name field.

Frequently asked questions

What is CVE-2025-51504?: Microweber CMS 2.0 is vulnerable to Cross Site Scripting (XSS)in the /projects/profile, homepage endpoint via the last name field.
How severe is CVE-2025-51504?: CVE-2025-51504 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2025-51504 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-51504?: CVE-2025-51504 affects Microweber. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-51504?: 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-2025-51504 have an EU (EUVD) identifier?: Yes. CVE-2025-51504 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23365.
When was CVE-2025-51504 published?: CVE-2025-51504 was published on 2025-08-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microweber:microweber:2.0.0:*:*:*:*:*:*:*

More vulnerabilities in Microweber

CVE-2023-1877 — Critical (CVSS 9.8): Command Injection in GitHub repository microweber/microweber prior to 1.3.3.
CVE-2022-0895 — Critical (CVSS 9.8): Static Code Injection in GitHub repository microweber/microweber prior to 1.3.
CVE-2020-23138 — Critical (CVSS 9.8): An unrestricted file upload vulnerability was discovered in the Microweber 1.1.18 admin account page. An attacker can…
CVE-2023-49052 — High (CVSS 8.8): File Upload vulnerability in Microweber v.2.0.4 allows a remote attacker to execute arbitrary code via a crafted script…
CVE-2023-2240 — High (CVSS 8.8): Improper Privilege Management in GitHub repository microweber/microweber prior to 1.3.4.
CVE-2022-33012 — High (CVSS 8.8): Microweber v1.2.15 was discovered to allow attackers to perform an account takeover via a host header injection attack.

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