CVE-2023-49103

Exploitation: active CVSS 10.0 CRITICAL

CVSS base score: 10.0 (Critical) vendor CNA · v3.1

Score assigned by the vendor's own CVE Numbering Authority (CNA); CISA's Vulnrichment program adds a score only when the CNA omits one.

ownCloud graphapi Information Disclosure Vulnerability

Vendor: ownCloud Product: ownCloud graphapi

Description

ownCloud graphapi contains an information disclosure vulnerability that can reveal sensitive data stored in phpinfo() via GetPhpInfo.php, including administrative credentials.

Lifecycle Timeline

2023-11-21

CVE published

Entered the public CVE record.

CVE.org →
2023-11-21

Public exploit code

Metasploit — ownCloud Phpinfo Reader

Metasploit →
2023-11-30

Added to CISA KEV 9 days later

Listed as known exploited, which starts the federal remediation clock.

CISA KEV →
2023-12-02

EPSS flags exploitation risk 2 days later

Probability rose past 10%, from 0.9% to 16.4%. Dated to the sampled week.

FIRST EPSS →
2023-12-21

Federal remediation due 19 days later

Deadline for federal civilian agencies under BOD 22-01 — now passed.

CISA KEV
2024-11-12

First national advisory 11 months later

CISA — 2023 Top Routinely Exploited Vulnerabilities

CyberzSOC advisory index →
not recorded

Vendor fix published

No dated vendor fix. Only Microsoft publishes a machine-readable release date; other vendors state a fixed version without one.

Each milestone comes from a different source, so gaps between them are gaps in what those sources publish, not evidence that nothing happened. EPSS history for this CVE holds 160 points from 2023-11-25, tracked daily from 2026-09-09; earlier points are weekly, which dates a spike to within a week. Peak probability 96.4% on 2024-08-24.

Published Applicability

CVE List v5 (CNA container) 1 affected · 0 fixed · 0 not affected

Check whether a specific version is affected →

What each source publishes about which product versions carry this vulnerability, kept as written rather than merged. Absence here means no source has published applicability data, not that nothing is affected.

Research & News Coverage

No mentions found in monitored research blogs or news feeds.

Detection & Exploitation

Scan

Nuclei OpenVAS / Greenbone NVT

Exploit / Pen Test

Metasploit GitHub PoC3

Network IDS/IPS

Snort (ET Open)3 Suricata (ET Open)3

Host / SIEM

none published

Coverage across public collections only: Nuclei and OpenVAS NVT (scan); Snort and Suricata ET Open (network); Sigma and YARA (host/SIEM); Metasploit, Exploit-DB and public GitHub repositories (exploit). Absence here means nothing public was found, not that detection is impossible.
GitHub PoC repositories are collected automatically by PoC-in-GitHub (CC0) and are not vetted: some are fakes and some are malware. Treat them as evidence that code was published, not as code to run.
OpenVAS coverage derives from the Greenbone Community Feed, made available under the Open Database License (ODbL) v1.0; its individual Vulnerability Tests are licensed GNU GPL v2.

CISA Assessment (Vulnrichment / SSVC)

Exploitation

active

Automatable

yes

Technical impact

partial

CVSS — CISA

—

CVSS — vendor CNA 3.1

10.0 CRITICAL

Vector

CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N

Weakness

CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor

Assessment updated

2024-09-04

KEV Catalog Status

Added to KEV

2023-11-30

BOD 22-01 due date

2023-12-21

Known ransomware use

Unknown

Listed By

Source	Date	Record
CISA KEV	2023-11-30	source record →
CISA Vulnrichment	2024-09-04	source record →

Referenced in Advisories

Date	Advisory	Issuer
2024-11-12	2023 Top Routinely Exploited Vulnerabilities	CISA

Weaponization Timeline — Offensive & Testing Tools

No exploit-tool sightings recorded for this CVE.

Evidence tiers are explained on the About page — a merged Metasploit module is far stronger evidence than a distro package mention.

External References

CVE.org record → NVD entry → CISA KEV catalog → FortiGuard Labs → Rapid7 AttackerKB →

⚠ Known Exploited Vulnerability (KEV) Tracker