CVE-2026-81809

Paytm Payment Gateway < 2.8.9 - Unauthenticated SQLi via Payment Callback

HIGH
7.5
CVSS Score
Published: October 1, 2026 at 06:00 AM UTC
Updated: October 1, 2026 at 01:11 PM UTC
1 product affected across 1 vendorPaytm Payment Gateway

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Severity
HIGH7.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

The Paytm Payment Gateway WordPress plugin before 2.8.9 does not properly escape data taken from payment callbacks before using it in a SQL statement, and the integrity check on those callbacks can be forged when the gateway is enabled without credentials, allowing unauthenticated users to perform SQL injection attacks.

Affected

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

v < 2.8.9
Affected range stops below 2.8.9, 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)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-89

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