How severe is CVE-2025-67163?

CVE-2025-67163 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-67163 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67163?

CVE-2025-67163 affects Simplemachines Simple Machines Forum. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-67163?

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

Does CVE-2025-67163 have an EU (EUVD) identifier?

Yes. CVE-2025-67163 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204342.

When was CVE-2025-67163 published?

CVE-2025-67163 was published on 2025-12-18 and last updated on 2026-06-17.

CVE-2025-67163

CVE-2025-67163 is a medium-severity vulnerability in Simplemachines Simple Machines Forum with a CVSS 3.x base score of 6.1. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204342
Weakness: CWE-20
Affected product: Simplemachines Simple Machines Forum
Published: 2025-12-18
Last modified: 2026-06-17

Description

A stored cross-site scripting (XSS) vulnerability in Simple Machines Forum v2.1.6 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Forum Name parameter.

Frequently asked questions

What is CVE-2025-67163?: A stored cross-site scripting (XSS) vulnerability in Simple Machines Forum v2.1.6 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Forum Name parameter.
How severe is CVE-2025-67163?: CVE-2025-67163 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-67163 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67163?: CVE-2025-67163 affects Simplemachines Simple Machines Forum. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-67163?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-67163 have an EU (EUVD) identifier?: Yes. CVE-2025-67163 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204342.
When was CVE-2025-67163 published?: CVE-2025-67163 was published on 2025-12-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:simplemachines:simple_machines_forum:2.1.6:*:*:*:*:*:*:*

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