Security readout for executives and security teams
Plain-English summary
Welcart e-Commerce versions before 2.12.1 can let an attacker preselect a customer’s session identifier. If the customer then logs in through an attacker-crafted request, the attacker may take over that customer account. The attack requires victim interaction and is not described as affecting site administration or availability.
Executive priority
Treat this as a moderate-priority customer-account risk. Expedite upgrades on affected commerce sites, especially those storing customer details or order history. Immediate emergency shutdown is not supported by the supplied evidence, but delayed remediation leaves customers vulnerable to targeted account takeover.
Technical view
The plugin accepts a session identifier through the user-controlled uscesid parameter and does not regenerate that identifier after authentication. This creates a session-fixation condition enabling unauthorized access to an authenticated shop-member session. The supplied CVSS 3.1 score is 5.4, reflecting network accessibility, low complexity, no required privileges, required user interaction, and limited confidentiality and integrity impact.
Likely exposure
Internet-facing WordPress stores running Welcart e-Commerce earlier than 2.12.1 and offering customer login are potentially exposed. The supplied structured affected-version entry is inconsistent, listing version "0" with a default unaffected status; therefore, inventory should follow the explicit narrative stating versions before 2.12.1.
Exploitation context
An unauthenticated attacker must induce a shop member to log in through an attacker-crafted request containing a chosen session identifier. The bundle does not establish active exploitation, and the CVE is not listed as KEV. No conclusion about exploitation prevalence can be drawn from the supplied sources.
Researcher notes
The core issue is session fixation rather than authentication bypass without user interaction. Defensive testing should confirm that request-supplied identifiers are rejected or replaced and that authentication rotates the session identifier. The structured affected-version data conflicts with the narrative range, so researchers should verify authoritative vendor metadata before making broader version claims.
Mitigation direction
- Upgrade Welcart e-Commerce to version 2.12.1 or later.
- Check the vendor and WPScan advisories for any additional remediation guidance.
- Invalidate existing customer sessions after upgrading if operationally practical.
- Warn customers against using unsolicited login links until remediation is complete.
Validation and detection
- Inventory all WordPress sites and record their installed Welcart e-Commerce versions.
- Confirm every active installation is version 2.12.1 or later.
- Verify authenticated logins receive a newly generated session identifier.
- Review web logs for suspicious uscesid parameters associated with customer login activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-15671 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N2.82.5CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://wpscan.com/vulnerability/3b2d4e7f-1e2a-4712-af9b-50080106d52c/CVE reference, WPScan · exploit, vdb-entry
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.