CVE-2026-15305
A remote, anonymous attacker can exploit a vulnerability in TYPO3 Core to bypass security measures.
CSIRTS triage
- What
- A vulnerability allows a remote attacker to bypass security measures.
- Who is affected
- Deployments of TYPO3 Core are affected.
- Urgency
- Remediation is medium urgency as exploitation is possible but not currently observed.
- Action
- Update to the latest version of TYPO3 Core.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Advisory coverage (2)
- medium[NEW] [medium] TYPO3 Core: Vulnerability allows bypassing security measurescert-bund · 2026-07-15
- unknownCVE-2026-15305: Users were able to upload files with arbitrary MIME types to forms using FileUpload or ImageUp…nvd · 2026-07-14
External references
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[](https://www.csirts.com/cve/CVE-2026-15305)