Welcart e-Commerce < 2.12.1 - Session Fixation via uscesid Parameter
Priority LOW 24CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
The 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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00305 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Welcart e-Commerce (Unknown): 2.12.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Welcart e-Commerce | before 2.12.1 | 2.12.1 | Patch available | CNA |
- Welcart e-Commerce VendorUnknown Affected before 2.12.1 Fixed in 2.12.1 Patch available CNA
Remediation
- Fix · CNA Welcart e-Commerce (Unknown) Fixed in 2.12.1
Timeline
- 2026-10-02 Threatist record created from CVE-2025-15671
- 2026-10-03 Alias added: GHSA-5v22-2f7p-c962
References
Sources
- CVE-2025-15671 · CVE Program
- CVE-2025-15671 · NVD
- FIRST EPSS
- GHSA-5v22-2f7p-c962 · GitHub Advisory Database · CC BY 4.0
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