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
Published May 27, 2025
10.0
CRITICALCVSS 3.1
EPSS 75.84%
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.
Affected products
-
- Version 5.0.0StatusaffectedConstraints<=5.7.5
- Version 6.0.0StatusaffectedConstraints<=6.0.3
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (MITRE) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed May 27, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (28 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 75.84% (0.75844) | 99.51th | v5 (v2026.06.15) |
| Aug 28, 2026 | 75.84% (0.75844) | 99.50th | v5 (v2026.06.15) |
| Jul 17, 2026 | 77.68% (0.77681) | 99.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 69.65% (0.69649) | 99.28th | v5 (v2026.06.15) |
| Jun 14, 2026 | 69.39% (0.69392) | 98.68th | v4 (v2025.03.14) |
| Jun 1, 2026 | 77.63% (0.77631) | 99.01th | v4 (v2025.03.14) |
| May 4, 2026 | 69.39% (0.69392) | 98.66th | v4 (v2025.03.14) |
| Apr 23, 2026 | 77.63% (0.77631) | 99.00th | v4 (v2025.03.14) |
| Apr 21, 2026 | 81.08% (0.81076) | 99.16th | v4 (v2025.03.14) |
| Apr 1, 2026 | 77.63% (0.77631) | 98.98th | v4 (v2025.03.14) |
| Mar 23, 2026 | 69.39% (0.69392) | 98.63th | v4 (v2025.03.14) |
| Nov 24, 2025 | 73.84% (0.73845) | 98.75th | v4 (v2025.03.14) |
| Nov 21, 2025 | 80.79% (0.80794) | 99.09th | v4 (v2025.03.14) |
| Nov 18, 2025 | 85.86% (0.85858) | 99.47th | v4 (v2025.03.14) |
| Nov 17, 2025 | 73.84% (0.73845) | 98.75th | v4 (v2025.03.14) |
| Oct 23, 2025 | 80.79% (0.80794) | 99.10th | v4 (v2025.03.14) |
| Jul 28, 2025 | 73.44% (0.73441) | 98.73th | v4 (v2025.03.14) |
| Jul 25, 2025 | 75.45% (0.75448) | 98.82th | v4 (v2025.03.14) |
| Jul 17, 2025 | 72.68% (0.72684) | 98.69th | v4 (v2025.03.14) |
| Jul 16, 2025 | 68.04% (0.68044) | 98.49th | v4 (v2025.03.14) |
| Jul 8, 2025 | 66.04% (0.66038) | 98.41th | v4 (v2025.03.14) |
| Jun 30, 2025 | 60.49% (0.60494) | 98.16th | v4 (v2025.03.14) |
| Jun 28, 2025 | 16.97% (0.16973) | 94.64th | v4 (v2025.03.14) |
| Jun 26, 2025 | 15.85% (0.15851) | 94.40th | v4 (v2025.03.14) |
| Jun 15, 2025 | 11.12% (0.11116) | 93.11th | v4 (v2025.03.14) |
| Jun 2, 2025 | 13.27% (0.13266) | 93.80th | v4 (v2025.03.14) |
| Jun 1, 2025 | 10.51% (0.10506) | 92.87th | v4 (v2025.03.14) |
| May 27, 2025 | 0.06% (0.00057) | 17.80th | v4 (v2025.03.14) |
References (3)
- https://blog.kevintel.com/vbulletin-replaceadtemplate-kev/ exploitBroken Link
- https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rce ExploitThird Party Advisory
- https://kevintel.com/CVE-2025-48827 Third Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://blog.kevintel.com/vbulletin-replaceadtemplate-kev/ | exploitBroken Link | |
| https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rce | ExploitThird Party Advisory | |
| https://kevintel.com/CVE-2025-48827 | Third Party Advisory |
Change history (0)
No recorded changes yet.