Read the docs
TI-2026-79563 Aliases CVE-2026-109935GHSA-3jfj-x8x5-pch2

Access control bypass in Otter Blocks exposes restricted block content

Priority LOW 30CWE-200Published · 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
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-200.

Summary

The Otter Blocks WordPress plugin before 3.2.8 does not enforce its block visibility conditions when a published post is rendered through the WordPress REST API. An unauthenticated remote attacker can read block content that the site owner restricted to specific roles, logged-in users, the post author, categories or tags, or Stripe purchasers on the Pro tier. The references include an exploit link.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The Otter Blocks WordPress plugin before 3.2.8 does not enforce its block visibility conditions when a published post is rendered through the WordPress REST API, allowing unauthenticated users to read block content that the site owner restricted to specific roles, logged-in users, the post author, categories or tags, or (on the Pro tier) Stripe purchasers.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00282 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Otter Blocks (Unknown): 3.2.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
UnknownOtter Blocksbefore 3.2.83.2.8Patch availableCNA
  • Otter Blocks VendorUnknown Affected before 3.2.8 Fixed in 3.2.8 Patch available CNA

Remediation

Update Otter Blocks to version 3.2.8 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Otter Blocks (Unknown) Fixed in 3.2.8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Otter Blocks 3.2.8

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-79564 Stored cross-site scripting in Otter Blocks WordPress pluginPriority LOW 35
    • TI-2026-79561 Stored cross-site scripting in Otter Blocks plugin via block stylesPriority LOW 30
    • TI-2026-79562 Otter Blocks exposes non-public content through REST APIPriority LOW 24
    Show all 4 records →

Timeline

  1. 2026-10-23 Threatist record created from CVE-2026-109935
  2. 2026-10-23 Alias added: GHSA-3jfj-x8x5-pch2
  3. 2026-10-24 CVSS score added · CISA ADP
  4. 2026-10-24 Weakness changed · CISA ADP
  5. 2026-10-24 CISA SSVC decision points changed

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences