eGroupWare 17.1.20190111 calendar/freebusy.php response discrepancy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in eGroupWare 17.1.20190111. This issue affects some unknown processing of the file calendar/freebusy.php. Executing a manipulation can lead to response discrepancy. The identification of this vulnerability is CVE-2023-38327. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in eGroupWare 17.1.20190111. This vulnerability affects an unknown part of the file calendar/freebusy.php. The manipulation with an unknown input leads to a response discrepancy vulnerability. The CWE definition for the vulnerability is CWE-204. The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere. As an impact it is known to affect confidentiality. CVE summarizes:

An issue was discovered in eGroupWare 17.1.20190111. A User Enumeration vulnerability exists under calendar/freebusy.php, which allows unauthenticated remote attackers to enumerate the users of web applications based on server response.

The advisory is shared for download at gruppotim.it. This vulnerability was named CVE-2023-38327 since 07/14/2023. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

By approaching the search of inurl:calendar/freebusy.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Response discrepancy
CWE: CWE-204 / CWE-203 / CWE-200
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/14/2023 CVE reserved
07/11/2025 +728 days Advisory disclosed
07/11/2025 +0 days VulDB entry created
09/12/2025 +62 days VulDB entry last update

Sourcesinfo

Advisory: gruppotim.it
Status: Not defined

CVE: CVE-2023-38327 (🔒)
GCVE (CVE): GCVE-0-2023-38327
GCVE (VulDB): GCVE-100-316144

Entryinfo

Created: 07/11/2025 20:15
Updated: 09/12/2025 01:50
Changes: 07/11/2025 20:15 (53), 09/12/2025 01:50 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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