CVE-2023-49103
Actively exploited. CVE-2023-49103 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-11-30) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2023-49103 is indexed in Metasploit, GitHub PoC and Nuclei. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
A remote, anonymous attacker can exploit multiple vulnerabilities in ownCloud to disclose information, bypass security measures, and manipulate files.
CSIRTS triage
- What
- Multiple vulnerabilities in ownCloud allow remote anonymous attackers to disclose information, bypass security measures, and manipulate files.
- Who is affected
- All ownCloud deployments are affected; exploitation is already active.
- Urgency
- Critical; actively exploited vulnerabilities with remote unauthenticated attack vector.
- Action
- Apply the latest ownCloud security patches immediately and verify file integrity.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99.5% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2023-49103 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- MetasploitA Metasploit Framework module targets this CVE — weaponized, point-and-click exploitation.look it up ↗
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
- NucleiA nuclei-templates detection/PoC template exists for this CVE.look it up ↗
Advisory coverage (2)
- criticalexploited[UPDATE] [critical] ownCloud: Multiple vulnerabilitiescert-bund · 2026-08-28
- criticalexploitedCVE-2023-49103: ownCloud graphapi Information Disclosure Vulnerabilitycisa-kev · 2023-11-30
External references
Embed the live status
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[](https://www.csirts.com/cve/CVE-2023-49103)