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TI-2021-18953 Aliases CVE-2021-42749GHSA-h5m9-c2h6-x3rp

In Beaver Themer, attackers can bypass conditional logic controls (for hiding content)…

Priority LOW 26CWE-668Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-668 and the CVSS impact.

Summary

In Beaver Themer, attackers can bypass conditional logic controls (for hiding content) when viewing the post archives. Exploitation requires that a Themer layout is applied to the archives, and that the post excerpt field is not set.

Why it matters now

EPSS 0.01106 66th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fastlinemedia:beaver_themer:-:*:*:*:*:*:*:*not specified by NVDVulnerablebeaverbuilder
  • cpe:2.3:a:fastlinemedia:beaver_themer:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·beaverbuilder

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42749
  2. 2026-10-03 Alias added: GHSA-h5m9-c2h6-x3rp

References

  • TI-2023-06123 Beaver Themer <= 1.4.9 - Authenticated (Contributor+) Sensitive Information Exposure via shortcode CVSS 3.1MEDIUM 6.5
  • TI-2023-06122 Beaver Themer <= 1.4.9 - Authenticated(Contributor+) Stored Cross-Site Scripting via shortcode CVSS 3.1MEDIUM 6.4

Sources