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TI-2026-03121 Aliases CVE-2026-3618GHSA-5xc8-cv7x-vq3g

Cross-site scripting in bestweblayout Columns by BestWebSoft – Additional Columns Plugin…

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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

The Columns by BestWebSoft plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' shortcode attribute of the [print_clmns] shortcode in all versions up to and including 1.0.3. This is due to insufficient input sanitization and output escaping on the 'id' attribute. The shortcode receives the 'id' parameter via shortcode_atts() at line 596 and directly embeds it into HTML output at line 731 (in a div id attribute) and into inline CSS at lines 672-729 without any escaping or sanitization. While the SQL query uses %d to cast the value to an integer for database lookup, the original unsanitized string value of $id is still used in the HTML/CSS output. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The attack requires that at least one column exists in the plugin (created by an admin), as the SQL query must return results for the output branch to be reached.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00314 24th 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
bestweblayoutColumns by BestWebSoft – Additional Columns Plugin for Posts Pages and Widgetsup to 1.0.3—No fix listedCNA
  • Columns by BestWebSoft – Additional Columns Plugin for Posts Pages and Widgets Vendorbestweblayout Affected up to 1.0.3 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3618
  2. 2026-10-03 Alias added: GHSA-5xc8-cv7x-vq3g

References

  • TI-2025-26269 WordPress Rating by BestWebSoft plugin <= 1.7 - PHP Object Injection Vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-11320 Cross-site scripting in bestweblayout Contact Form to DB by BestWebSoft – Messages… CVSS 3.1HIGH 7.2
  • TI-2025-22369 WordPress Slider by BestWebSoft plugin <= 1.1.0 - SQL Injection Vulnerability CVSS 3.1HIGH 7.6
  • TI-2026-67944 Cross-site scripting in Contact Form to DB by BestWebSoft plugin CVSS 3.1HIGH 7.1
  • TI-2024-34690 WordPress Realty by BestWebSoft plugin <= 1.1.5 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
  • TI-2025-12235 Job Board by BestWebSoft <= 1.2.1 - Cross-Site Request Forgery to Stored Cross-Site Scripting via $_GET Array Storage CVSS 3.1MEDIUM 6.1
See all 7 →

Sources