CVE-2025-48827
CriticalExploitedPublic exploitvBulletin 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.
Published May 27, 2025 · Updated Jun 25, 2025
Key Facts
Patch immediately- CVE-2025-48827 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting vBulletin.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since May 26, 2025. Public exploit code is available.
- EPSS estimates a 76% probability of exploitation in the next 30 days.
- Fixed versions are available, including vBulletin <=5.7.5, vBulletin 5.7.5.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
76%
Higher than 99.5% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | May 26, 2025 | n/a | Not reported |
| CIRCL KEV | Jul 31, 2025 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| vBulletinVbulletin | >= 5.0.0 | 5.7.5 |
Patched Releases
vBulletin
<=5.7.5
Timeline
Added to Industry KEV feed
May 26, 2025
Publicly disclosed
May 27, 2025
Last updated
Jun 25, 2025
Added to CIRCL KEV
Jul 31, 2025
Weakness Type
- CWE-424 Improper Protection of Alternate Path
References
- advisoryhttps://kevintel.com/CVE-2025-48827
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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.
Affected: vBulletin versions >= 5.0.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since May 26, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including vBulletin <=5.7.5, vBulletin 5.7.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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