VulnRadar

Data against noise.

Page generated: 08 Nov 2026, 12:53 UTC

CVE-2023-49103

Read full description

An issue was discovered in ownCloud owncloud/graphapi 0.2.x before 0.2.1 and 0.3.x before 0.3.1. The graphapi app relies on a third-party GetPhpInfo.php library that provides a URL. When this URL is accessed, it reveals the configuration details of the PHP environment (phpinfo). This information includes all the environment variables of the webserver. In containerized deployments, these environment variables may include sensitive data such as the ownCloud admin password, mail server credentials, and license key. Simply disabling the graphapi app does not eliminate the vulnerability. Additionally, phpinfo exposes various other potentially sensitive configuration details that could be exploited by an attacker to gather information about the system. Therefore, even if ownCloud is not running in a containerized environment, this vulnerability should still be a cause for concern. Note that Docker containers from before February 2023 are not vulnerable to the credential disclosure.

CVSS 10.0 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

8.9/10

General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?

Recorded exploitation baseline: +7.00
Technical severity: CVSS 10: +1.50
Fresh EPSS: 77.75%: +0.39

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 12 documents and public datasets.

Hype components

Headline sample (25%)

0/100

Press, 30 days (60%)

0/100

Grounded branding (15%)

0/100

HYPE TOTAL0/100

Sources and documents

BleepingComputer

Press · 12 Feb 2025, 08:00 · Surge in attacks exploiting old ThinkPHP and ownCloud flaws - BleepingComputer

GreyNoise

Press · 11 Feb 2025, 08:00 · New Exploitation Surge: Attackers Target ThinkPHP and ownCloud Flaws at Scale - GreyNoise

Cyfirma

Press · 22 Dec 2023, 08:00 · OwnCloud CVE-2023-49103 Vulnerability: Analysis and Exploitation Insights - Cyfirma

GreyNoise

Press · 05 Dec 2023, 08:00 · CVE-2023-49105, WebDAV Api Authentication Bypass in ownCloud - GreyNoise

Rapid7

Press · 01 Dec 2023, 08:00 · CVE-2023-49103 - Critical Information Disclosure in ownCloud Graph API - Rapid7

See all 12 source documents

SOC Prime

Press · 30 Nov 2023, 08:00 · CVE-2023-49103 Detection: A Critical Vulnerability in OwnCloud's Graph API App Leveraged for in-the-Wild Attacks - SOC Prime

GreyNoise

Press · 29 Nov 2023, 08:00 · CVE-2023-49103: ownCloud Critical Vulnerability Quickly Exploited in the Wild - GreyNoise

Cyber Daily

Press · 29 Nov 2023, 08:00 · Trio of major ownCloud vulnerabilities sparks ACSC critical alert - Cyber Daily

Ars Technica

Press · 28 Nov 2023, 08:00 · ownCloud vulnerability with maximum 10 severity score comes under “mass” exploitation - Ars Technica

BleepingComputer

Press · 28 Nov 2023, 08:00 · Hackers start exploiting critical ownCloud flaw, patch now - BleepingComputer

TechTarget

Press · 27 Nov 2023, 08:00 · Threat actors targeting critical OwnCloud vulnerability - TechTarget

The Hacker News

Press · 25 Nov 2023, 08:00 · Warning: 3 Critical Vulnerabilities Expose ownCloud Users to Data Breaches - The Hacker News

Score evolution

● Hype ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.9 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

See 1 repos with metrics

Repository	Stars	Forks	Language	Updated
creacitysec/CVE-2023-49103	30	11	Python	02 Dec 2023, 01:09

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence: Exploitation recorded
Priority basis: Recorded exploitation; CVSS 10; EPSS 77.8%
Attention, last 30 days: 0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential: network access, no prior privileges, no user interaction.
Observed activity: Exploitation recorded in CISA KEV.
Known scale: Not quantified.
Evidence confidence basis: Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:59:01.465988+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

Published

21 Nov 2023, 00:00

First press mention

25 Nov 2023, 08:00

Added to the CISA KEV catalog

30 Nov 2023, 00:00

Latest press mention

12 Feb 2025, 08:00

Score calculated

05 Nov 2026, 13:59

PoCs on GitHub

1 repositories