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TI-2026-75230 Aliases CVE-2026-91830GHSA-vg8j-9jxp-q7qm

Subscribe to Comments plugin leaks subscriber management keys

Priority LOW 34CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
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-200.

Summary

The Subscribe to Comments WordPress plugin before 2.3.3 does not sign or validate a cookie it trusts to identify a commenter, which exposes sensitive information (CWE-200). An unauthenticated remote attacker can forge that cookie to obtain a subscriber's management key and silently change that subscriber's subscriptions. An exploit link appears in the references.

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

Description from the CNA

The Subscribe to Comments WordPress plugin before 2.3.3 does not sign or validate a cookie it trusts to identify a commenter, allowing unauthenticated attackers to disclose a subscriber's management key and silently alter that subscriber's subscriptions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00176 7th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Subscribe to Comments (Unknown): 2.3.3

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
UnknownSubscribe to Commentsbefore 2.3.32.3.3Patch availableCNA
  • Subscribe to Comments VendorUnknown Affected before 2.3.3 Fixed in 2.3.3 Patch available CNA

Remediation

Update the Subscribe to Comments WordPress plugin to version 2.3.3, which fixes this flaw.

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

  • Fix · CNA Subscribe to Comments (Unknown) Fixed in 2.3.3

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-91830
  2. 2026-10-16 Alias added: GHSA-vg8j-9jxp-q7qm

References

Exploit 1

Sources

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