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CVE-2025-48827

Vbulletin vulnerability

10.0 CRITICALPublic exploitEPSS 75.8%
  1. Published27 May 2025

Description

vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 allows unauthenticated users to invoke protected API controllers' methods when running on PHP 8.1 or later, as demonstrated by the /api.php?method=protectedMethod pattern, as exploited in the wild in May 2025.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Vbulletin≥ 5.0.0 ≤ 5.7.5 · ≥ 6.0.0 ≤ 6.0.3

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-2025-48827 being actively exploited?

CVE-2025-48827 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 75.8%.

How severe is CVE-2025-48827?

CVE-2025-48827 has a CVSS 3.1 base score of 10.0, rated critical. EPSS estimates a 75.8% probability of exploitation.

Which products are affected by CVE-2025-48827?

Affected products include Vbulletin.

How do I fix CVE-2025-48827?

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-2025-48827 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.