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CVE-2026-91829

Subscribe to Comments < 2.3.3 - Reflected XSS via 'ref' Parameter

HIGH
7.1
CVSS Score
Published: October 11, 2026 at 06:00 AM UTC
Updated: October 13, 2026 at 04:29 PM UTC
1 product affected across 1 vendorSubscribe To Comments

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

The Subscribe to Comments WordPress plugin before 2.3.3 does not properly validate a parameter before reflecting it into a link target, allowing unauthenticated attackers to perform Reflected Cross-Site Scripting via a crafted URL against anyone who clicks it, including administrators.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/1ed0314d-9871-4914-bb9c-ff894ea4c400/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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