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CVE-2026-61511: vBulletin 5.0.0 through 5.7.5, 6.0.0 through 6.2.1
CVE-2026-61511. CVSS 3.1 base score 9.8 (CRITICAL, Vendor/CNA). EPSS 0.05607 (percentile 0.92739), scored 12-Oct-2026.
Affected technology
vBulletin · 5.0.0 through 5.7.5, 6.0.0 through 6.2.1
vBulletin
Description’s affected range: through 5.7.5 and 6.x through 6.2.1
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Unauthenticated remote attackers can execute arbitrary PHP code by supplying crafted input through the pagenav[pagenumber] parameter. Vendor/CNA’s CVSS 4.0 assessment (base score 9.3/10) rates confidentiality, integrity and availability impact as high.
- CWE
- CWE-95
- CCR priority
- 40.6 /100 (P3)
- CVSS 3.1
- 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
- EPSS
- 0.05607 · percentile 0.92751 · 2026-10-13
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-14 05:24:14.258005+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-14 05:19:44.455882+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-61511.html