CVE-2025-48827 (GCVE-0-2025-48827)

Vulnerability from cvelistv5 – Published: 2025-05-27 00:00 – Updated: 2025-05-27 18:03
VLAI KEVintel KEV
Summary
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.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-424 - Improper Protection of Alternate Path
Assigner
References
Impacted products
Vendor Product Version
vBulletin vBulletin Affected: 5.0.0 , ≤ 5.7.5 (custom)
Affected: 6.0.0 , ≤ 6.0.3 (custom)
Create a notification for this product.
KEVintel KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 4c695edc-f33a-4625-8ea6-c11328201274

Vulnerability ID: CVE-2025-48827

Status: Confirmed

Status Updated: 2026-06-03 10:06 UTC

Exploited: Yes

Timestamps
First Seen: 2026-06-03
Asserted: 2026-06-03
Scope
Notes: KEVIntel entry: 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... | Affected: vBulletin / vBulletin | CVSS: 10.0 (CRITICAL) | EPSS: 0.69649 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title 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...
Vendor vBulletin
Product vBulletin
Added Date 2026-06-03T10:06:54.268Z
Cvss Score 10.0
Epss Score 0.69649
Cvss Severity CRITICAL
Epss Percentile 0.9928
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-19 12:45 UTC | Updated: 2026-06-19 12:45 UTC
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.