CVE-2026-87888

YayPricing < 3.5.7 - Subscriber+ Stored XSS via save_page_data REST Route

HIGH
8
CVSS Score
Published: September 12, 2026 at 06:00 AM UTC
Updated: September 14, 2026 at 09:24 PM UTC
1 product affected across 1 vendorYayPricing

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Severity
HIGH8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The YayPricing WordPress plugin before 3.5.7 does not perform an authorization check on a REST route that saves its pricing rules, allowing users with the subscriber role and above to store JavaScript that executes in the browser of an administrator who opens the YayPricing WordPress plugin before 3.5.7's settings page.

Affected

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

YayPricing· Yaycommercewordpress-plugin
60%
v < 3.5.7
Affected range stops below 3.5.7, so it looks safe — our inference, not a vendor statement

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/19bc425d-2aa3-4b2b-bc66-ac5ea96502e0/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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