CVE-2016-15015

viafintech Barzahlen Payment Module PHP SDK Webhook.php verify timing discrepancy

MEDIUM
5.3
CVSS Score
Published: January 8, 2023 at 05:15 PM UTC
Updated: June 17, 2026 at 12:41 AM UTC
2 products affected across 2 vendorsBarzahlen Payment Module PHP SDKBarzahlen Payment Module PHP SDK

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.7%

Description

A vulnerability, which was classified as problematic, was found in viafintech Barzahlen Payment Module PHP SDK up to 2.0.0. Affected is the function verify of the file src/Webhook.php. The manipulation leads to observable timing discrepancy. The complexity of an attack is rather high. The exploitability is told to be difficult. Upgrading to version 2.0.1 is able to address this issue. The patch is identified as 3e7d29dc0ca6c054a6d6e211f32dae89078594c1. It is recommended to upgrade the affected component. VDB-217650 is the identifier assigned to this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.0.1
Affected range stops below 2.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

Issue TrackingPatchThird Party Advisory
https://github.com/viafintech/Barzahlen-PHP/pull/8
SignaturePermissions RequiredThird Party Advisory
https://vuldb.com/?ctiid.217650
VDB EntryTechnical DescriptionThird Party Advisory
https://vuldb.com/?id.217650

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-208CWE-203

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