CVE-2026-91830

Subscribe to Comments < 2.3.3 - Unauthenticated Subscription Management Key Disclosure via Forged Comment Cookie

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.

Affected

Subscribe to Comments

CVSS v3.1 CISA-ADP

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS

0.18% chance of exploitation in the next 30 days, 7th percentile

Published

2026-10-16

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/b2b1638a-f8af-49f7-86a6-a3eeea0526b1/

References

• CVE Record
• NVD entry