VDB-236108 · CVE-2023-36134 · EUVD-2023-40113

PHP Jabbers Class Scheduling System 1.0 Email Verification data authenticity

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in PHP Jabbers Class Scheduling System 1.0. This issue affects some unknown processing of the component Email Verification Handler. Such manipulation leads to an unknown weakness. This vulnerability is listed as CVE-2023-36134. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in PHP Jabbers Class Scheduling System 1.0 (Programming Language Software). Affected by this issue is an unknown code block of the component Email Verification Handler. Using CWE to declare the problem leads to CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In PHP Jabbers Class Scheduling System 1.0, lack of verification when changing an email address and/or password (on the Profile Page) allows remote attackers to take over accounts.

The weakness was presented 08/04/2023. The advisory is shared for download at medium.com. This vulnerability is handled as CVE-2023-36134 since 06/21/2023. There are neither technical details nor an exploit publicly available.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-40113). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Programming Language Software

Vendor

PHP Jabbers

Name

Class Scheduling System

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Data authenticity
CWE: CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/21/2023 🔍
08/04/2023 +44 days 🔍
08/04/2023 +0 days 🔍
01/12/2026 +892 days 🔍

Sourcesinfo

Advisory: medium.com
Status: Not defined

CVE: CVE-2023-36134 (🔍)
GCVE (CVE): GCVE-0-2023-36134
GCVE (VulDB): GCVE-100-236108
EUVD: 🔍

Entryinfo

Created: 08/04/2023 08:57
Updated: 01/12/2026 03:11
Changes: 08/04/2023 08:57 (37), 08/26/2023 13:17 (1), 01/12/2026 03:11 (16)
Complete: 🔍
Cache ID: 216::103