CVE-2026-61511
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2026-61511 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation even though it is not (yet) in the CISA KEV catalog.
A remote, anonymous attacker can exploit a vulnerability in vBulletin to execute arbitrary program code.
CSIRTS triage
- What
- A vulnerability in vBulletin allows remote, anonymous attackers to execute arbitrary program code.
- Who is affected
- Deployments of vBulletin.
- Urgency
- Remediation is critical due to the high risk of remote code execution.
- Action
- Patch vBulletin to the latest version immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Moderate exploitation risk1.3% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 67% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2026-61511 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (2)
- critical[NEW] [critical] vBulletin: Vulnerability allows code executioncert-bund · 2026-07-28
- criticalCVE-2026-61511: vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in …nvd · 2026-07-27
External references
Embed the live status
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[](https://www.csirts.com/cve/CVE-2026-61511)