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Stored cross-site scripting in SureCart WordPress plugin

Priority LOW 31CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

SureCart, a WordPress ecommerce plugin, is affected through version 4.9.4. Insufficient input sanitization and output escaping (CWE-79) let an unauthenticated attacker store arbitrary web scripts in a comment. The script runs when a user opens a page that loads SureCart's web-component bundle and shows the comment, after the comment is auto-approved or approved by a moderator.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

The SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.9.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful execution requires the injected comment to be visible on a page that loads SureCart's web-component bundle (e.g. a page containing a SureCart Buy Button block), and the comment must be auto-approved or approved by a moderator.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0028 20th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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
SureCartSureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Paymentsup to 4.9.4—No fix listedCNA
  • SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments VendorSureCart Affected up to 4.9.4 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for SureCart (all versions through 4.9.4).

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Timeline

  1. 2026-10-31 Threatist record created from CVE-2026-107653
  2. 2026-10-31 Alias added: GHSA-phr2-h83q-x5jf
  3. 2026-11-01 Priority changed: MEDIUM → LOW
  4. 2026-11-01 CISA SSVC decision points changed

References

  • TI-2026-06737 SureCart <= 4.2.3 - Unauthenticated Linked WordPress Account Takeover via Forged customer.updated Webhook CVSS 3.1HIGH 8.1
  • TI-2026-84147 Improper authentication in SureCart – Ecommerce Made Easy For Selling Physical Products… CVSS 3.1HIGH 8.1
  • TI-2026-63986 WordPress SureCart plugin <= 4.7.2 - Privilege Escalation vulnerability CVSS 3.1HIGH 7.2
  • TI-2026-75265 Stored cross-site scripting in SureCart plugin for WordPress CVSS 3.1HIGH 7.2
  • TI-2026-41251 WordPress SureCart plugin <= 4.3.2 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
  • TI-2024-29559 WordPress SureCart plugin <= 2.29.3 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
See all 10 →

Sources