CVE-2023-49103Known exploitationPublic exploitNetwork attack vector

Credential disclosure via exposed phpinfo test endpoint

Published Nov 21, 2023 · Updated Oct 21, 2025

Information disclosure in ownCloud graphapi 0.2.0 and 0.3.0 allows remote attackers to read PHP configuration data without authentication. The bundled GetPhpInfo.php test endpoint calls phpinfo() and exposes web-server environment variables, including deployment secrets. Network access to the endpoint is sufficient; affected containers can expose administrative, mail, database, and storage credentials, while other deployments disclose configuration details.

CVSS severity10.0
Critical
EPSS probability78.43%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Information disclosure in ownCloud graphapi 0.2.0 and 0.3.0 allows remote attackers to read PHP configuration data without authentication. The bundled GetPhpInfo.php test endpoint calls phpinfo() and exposes web-server environment variables, including deployment secrets. Network access to the endpoint is sufficient; affected containers can expose administrative, mail, database, and storage credentials, while other deployments disclose configuration details.

The record

CVE
CVE-2023-49103
Published
Nov 21, 2023
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-200, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 1, 2023Exploitation reportedTop routinely exploited vulnerability in 2023
  2. Nov 21, 2023CVE publishedPublication date reported by the CVE source.
  3. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

10.0MITRE CorporationCVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsShadowserver observations through Sep 16, 2026. Gaps indicate unavailable data.
Sep 10, 2026Sep 16, 2026
View daily counts
Reporting dayUnique IPs
Sep 10, 2026Unavailable
Sep 11, 2026Unavailable
Sep 12, 2026Unavailable
Sep 13, 20261
Sep 14, 20264
Sep 15, 20261
Sep 16, 20264
Latest reporting daySep 16, 2026
Latest daily unique IPs4
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1552Unsecured Credentials

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo