Welcart e-Commerce < 2.12.1 - Session Fixation via uscesid Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-15671
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-21 07:16:22 UTC
Updated2026-08-26 16:30:52 UTC
DescriptionThe Welcart e-Commerce WordPress plugin before 2.12.1 does not regenerate the session identifier on authentication and sets the session identifier from a user-supplied request parameter, allowing an unauthenticated attacker to fixate a shop member's session and take over their customer account after the victim logs in through an attacker-crafted request.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS: 0.001770000 probability, percentile 0.072350000 (date 2026-08-24)

Problem Types: CWE-287 | CWE-287 Improper Authentication | CWE-287 CWE-287 Improper Authentication

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Welcart E-Commerce affected 2.12.1 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/3b2d4e7f-1e2a-4712-af9b-50080106d52c [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: bRpsd (en)

CNA: WPScan (en)

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