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Simple Shopping Cart < 5.2.6 - Admin+ Stored XSS via PayPal API Credentials

Priority LOW 16CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
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-79.

Summary

The Simple Shopping Cart WordPress plugin before 5.2.6 does not escape some of its settings field values before outputting them on an admin settings page, allowing high-privilege users such as administrators to perform Stored Cross-Site Scripting attacks, which is notably impactful on multisite installations where administrators do not have the unfiltered_html capability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00142 3rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Simple Shopping Cart (Unknown): 5.2.6

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

VendorProductAffected versionsFixed inStatusSource
UnknownSimple Shopping Cartbefore 5.2.65.2.6Patch availableCNA
  • Simple Shopping Cart VendorUnknown Affected before 5.2.6 Fixed in 5.2.6 Patch available CNA

Remediation

  • Fix · CNA Simple Shopping Cart (Unknown) Fixed in 5.2.6

Timeline

  1. 2026-10-04 Threatist record created from CVE-2026-104119
  2. 2026-10-04 Alias added: GHSA-p57v-42f3-wfqr
  3. 2026-10-05 CVSS score added · CISA ADP
  4. 2026-10-05 Weakness changed · CISA ADP
  5. 2026-10-05 CISA SSVC decision points changed

References

Sources